At60ed field flattener I noticed the images suffered as Ive read Towards the outer edges through the scopes. First Light Images for a new Astro-Tech AT60ED telescope. 8 lens for faster and wider field astronomical and terrestrial AT60ED doublet refractor optics: 60mm (2. I need a field flattener. flatener for ASTRO-TECH AT60ED 60MM F/6 FPL-53ED - posted in Beginning Deep Sky Imaging: I would like to purchase the ASTRO-TECH AT60ED 60MM F/6 FPL-53ED, but reading various sites on it. With my AT60ED and dedicated field flattener I had used it's sharp and almost reaches the corner of a FULL frame. I have gotten wide field shots containing the fullness of the complete Veil Nebula system Just so you know the AT60ED is basically the same scope as the Apertura 60mm APO FPL-53 refractor (sold by High Point Scientific) And at the time, the Astro-Tech field flattener was on backorder. Would like to keep to around a 200 budget if possible, thanks Also, what field flattener should I be using if I get it. AT60EDP has field flattener. at60ed - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Is it possible to use the MPCC III in place of the field flattener for an AT60ED or William optics 61? Im trying to figure out which Id like to get and For context, I have the ASTRO-TECH AT60ED with a field flattener that I ordered hopefully coming in some time soon. 8x Reducer/Flattener: The dedicated fully-multicoated Astro-Tech AT80EDRF converts the 560mm focal length f/7 Astro-Tech AT80ED refractor into a 448mm f/5. Then I tried putting the reducer behind my Astro Tech AT60ED Field Flattener Holds my AT60ED, field flattener, diagonal and some eyepieces. 8X focal reducer which can be adjusted for several different WO FLAT61R on AT60ED - posted in Refractors : Has anyone used the William Optics adjustable 0. I have not tried shooting without the field flattener, but I think I will try that tonight on M13. 95 - Original price $99. I simply slapped the same optical train from my AT60ED which previously had only minor tilt at 5%. 2. 95 - $99. 8x reducer/flattener. 8 reducer and/or my Hotech field flattener would work for it. 25mm diagonal) are almost fully covered. 95 From that standpoint, the AT60ED didn't disappoint, and I now can get the entire Sun in view in the eyepiece. So a thought had occurred to me--take my small mount (SW AT70ED + ATR8 reducer/flattener back spacing. Posts: 3,243; Joined: 17 Jan 2008; Loc: Graham,Texas; Posted 11 November 2017 - 02:55 PM. Hughes Thompson Scopes: ES ED-102 FCD100 CF, ZWO Mini Guide Scope, Astro-Tech AT60ED, Askar FMA180, Sky-Watcher Skymax 102 Mounts: Another feature of the field flattener is that it’s designed to preserve the f/6 focal ratio (and 360mm focal length) of the TS-Optics PhotoLine 60mm f/6 FPL-53 apo. 8x reducer/field flattener is designed for astrophotography while using your Astro-Tech AT80ED refactor This Astro-Tech #AT80EDRF 0. With my Bortle 7 sky and limited views from my backyard, I have found that most of my targets are emission nebulas and narrowband filters allow me to overcome some A few reasons, first and foremost, the Apertura is in stock (who knows when an AT60ED will ever be back in stock), second it includes a finder dovetail (which is sold separately with the AT60), and third (and probably the biggest deciding factor) is I ordered a NEAF open box item so there was a pretty substantial discount on the package that includes the field Flattener. The flattener produces wonderful flat fields as well as a 41mm image circle. The dedicated field flattener can be unscrewed to reveal internal threads for 2” filters, which took me a while to figure out. I started out using the Orion 76mm tube rings - but got the WO Z 61 ring/saddle for a guidescope mount. 8x focal reducer and The fully-multicoated Astro-Tech ATRF60 converts the 360mm focal length f/6 Astro-Tech AT60ED refractor into a 288mm f/4. "The Apertura 60mm FPL-53 Doublet Refractor and 2" Field Flattener is a great starter kit for someone who is looking to make the jump from a DSLR and camera lens to a full on refractor. 8X reducer/field flattener is designed for prime focus astrophotography with the Astro-Tech AT60ED, it will work with other variants of the same optical tube. 1 William Optics Zenithstar 61 + William Optics Flat61 1. 72x Reducer/Flattener 8 is a high-quality equipment item created to improve your experience in astrophotography. 95. Reducer/flattener is somewhat pricier than just flattener. See the image from PI aberration inspector. I like having a natural orientation for the field of First light help. Price includes Paypal fees. what could be causing this? I’ve had a lot of fun with the AT60 - had it since January. I ended up getting the field flattener and camera rotator for this scope, The AT60ED shown with a TeleVue Panoptic 24mm eye piece, a TeleVue Everbright 1. Do a test, just factor out the flattener, take a shot without it, with an adjusted exposure time to get the same brightness and see if it recurs. The FPL-53/lanthanum glass combination really, really works! Astro-Tech AT60ED Field Flattner - posted in Equipment (No astrophotography): Hello, 5 months ago I purchased an Astro-Tech AT60ED telescope. (model year 2018 and newer) The dedicated fully-multicoated Astro- AT field flattener - where to put the filter? - posted in Equipment (No astrophotography): I use the AT field flattener on my little AT60ED. Here All you have to worry about is getting 55mm backfocus from the back of the field flattener fully assembled to your sensor plane. I started out by taking some shots of the waxing crescent moon, slewing it from the center to each corner to see if Pros of the AT60ED: - Cheaper at $420 (cost difference is mitigated slightly if I add rings and a dovetail) - Slightly lighter. Works great. The Astro-Tech 60ED 1x flattener easily threads on to the focuse This economical 0. That’s it. 8x reducer flattener for f/5. I have a week+ of thunderstorms coming up and not one to According to FLO's website blurb, the corrector/reducer also has one ED element fitted 'An optional 0. Thanks for looking! Funding Member. Unfortunately the field flattener for it is out of stock until October. 8x reducer that I already had for my This thread on field flattener for the AT60ED is a must for full frame photography. The field flattener Apertura offers separately for this Given that the Canon 5D Mark 1 has 8. Mike. zwo cam field flattener? - posted in Lunar Observing and Imaging: So ive been practicing my night time lunar photography with my. 8X reducer/field flattener is designed for prime focus astrophotography with quality f/6 focal ratio apo refractors such as the Astro-Tech AT72ED and AT130 apo, it will also work well with Astro-Tech and other brand refractors in the f/5. Then one could be used to guide the other and Id ZWO with field flattener - posted in Lunar Observing and Imaging: So ive been practicing my night time astro photography with taking lots of moon photos with my gear. You won't be able to achieve focus Page 3 of 3 - Field flattener for visual? - posted in Eyepieces: I find the TSFLAT2 works quite well with my AT72EDII. Love my AT60ED! I started my AP journey with this excellent little scope and still use it for wide field imaging. I put a 2" diagonal in mine and enjoy all of my eyepieces. 25 diagonal, and a Manfroto camera tripod with pistol grip for easy aiming. These seem to aways be out of stock so if you are looking for one, you can get this new one at a discounted price. Astro-tech AT60ED 0. 3 reducer/flattener. ASTRO-TECH AT60ED 60MM F/6 FPL-53ED AND LANTHANUM DOUBLET. If you want to be precise about the working distance, the prescribed distances from TS website are: The At60ed Field Flatter (1. 36”) aperture, 360mm focal length, f/6 focal ratio air-spaced doublet lens using premium ED glass, including an FPL Even though this field flattener is made specifically for the AT60ED, cameras vary especially when it comes to sensor to lens flange distance. The Zenithstar 61 more expensive, and the flattener is $200 so I've eliminated that option. I William Optics z61 with field flattener William Optics RedCat 51 Sky Rover 60 ED APO with field flattener Astro-Tech AT65Q ED Both WO refractors show exquisite but the price is expensive too, Sky Rover 60ED APO and WO Z61 looks no Meade DSI I image - posted in Experienced Deep Sky Imaging: I recently picked up an at60ed and I do not have a field flattener yet and I do not have enough back focus to focus so instead of playing with my dslr I broke out my old Meade DSI I that I bought to guide with a while ago and never used. delivering an impressive 72x magnification without compromising field flatness to offer bright, clear images throughout the entire field. The Camera Angle Adjuster allows you to change the orientation of the camera body to the optical tube with a simple twist of the collar. But as a first Refractor, it has my vote. It has a 41mm image circle, great for full frame sensors. This thread on field flattener for the AT60ED is a must for full frame photography. Current AstroTech AT60ED field flattener (works perfectly with the Z61) Price for the scope + flattener: $475 + actual shipping cost + paypal fee The scope is in very good condition, with some dust on the lens that does not impact images or views. It also makes a nice terrestrial spotting scope if you get a diagonal and/or field flattener. Please provide condition and cost including shipping. It gives you a 288mm F. I recently got the William Optics Flat 6AII field flattener 0. The backspacing is 55MM which is what most DSLRs use. 7x reducer Edited by joelin, 12 May 2019 - 12:27 AM. I lost the spacer at the end of my AT60ED field flattener. 8 lens for faster and wider field astronomical and terrestrial Apertura 60mm f6 field flattener options - posted in Refractors : I ordered my Apertura 60mm f6 scope last month. I believe these scopes are essentially the same. I have the matched field flattener and it works great on my ASP-C canon. What are the relative advantages/disadvantages of these two options? Of course, the reducer will make the scope faster (in general Id say thats One key difference for imaging is that the AT60 being a very short focal length refractor has a lot of field curvature. Filters that came with a Scope I bought - useful for AT60ED? - posted in Beginning Deep Sky Imaging: Just before I retired I bought a used 12 Meade LX 200 classic from a work mate. Instructions would come with the flattener/reducer, and probably the scope. 8 Field Flattener for same. I also bought the focal reducer/flattener for it and a bunch of spacers to get the sensor spacing just right, and generally While this Astro-Tech #ATR8 0. Also with my edge 8" it's perfect to full frame and almost perfect to the corner of a crop sensor with 0. Resolution is still good at 1. The William Optics Zenithstar 61 is a doublet apochromatic refractor telescope that excels in deep-sky DSLR astrophotography. Furthermore, the TSFlat60 is also designed to deliver a fully corrected and illuminated field of view that is 41mm wide, hence cameras with full-frame sensors (43. 6x flattener/reducer for an effective focal length of appx 216mm I am leaning towards the AT60ED/StellaMira combo for the following Field Flattener for Astro Tech AT70ED - posted in Refractors : I searched the forums, but I didnt find any threads. Stellarvue has discontinued the Page 30 of 37 - AT60ED: Something Small From Our Sponsors - posted in Refractors : Exactly when I decided to order AT60ED, Astronomics website shows AT72EDII availability as In Stock. html And I dont know what to choose. For photography, with standard refractors, you'd want either a Field-flattener or a reducer (which also acts as a flattener) in the optical path. Back to top #468 CCD-Freak CCD-Freak. Edited by Tapio, 10 November 2023 - 01:29 PM. (I know the challenge that comes along with it) However, will I be able to use this scope (get it into focus) with a canon t2i DSLR and no field flattener/ reducer. 8x Reducer/Flattener that goes with it, too. 8x Reducer Field Flattener For the Effect of barlows / field flatness for AT60ED solar imaging - posted in Solar Observing and Imaging: Ideally, Id like to image the 2024 total solar eclipse using my NP101. I have an eq mount/tripod and an Astro Tech AT60ED + The Astro-Tech AT72EDII takes the performance, and mechanics, of the "product everyone should own" (thank you Astronomy Magazine) and gives it an upgrade. Page 5 of 5 - Anyone with an AT60ED? - posted in Refractors : Im not sure if reducer has filter threads or not - only just received mine and havent tried to see if it unscrews in the middle anywhere. OR. It can't be used visually. As a short refractor, it's meant for wide-field views and astrophotography. 95 Original price. . The field flattener for the AT60ED arrived yesterday. I believe that's a big part of where the price difference comes from. I have found it only works well with the dedicated flattener. Did the same I am currently using the AT60ED without a field flattener with a crop sensor DSLR (700D) and have found that while it is usable, you want the field flattener. This is a dedicated flattener for the Astro-Tech AT60ED 60MM F/6 FPL-53 ED doublet refractor, not sure if it will work with any other scope. $99. Page 6 of 6 - TS 2" Field Flattener for Visual - posted in Refractors : I have a 2 Meade mirror diagonal with a removeable neck. It's as simple as that. The Astro-Tech AT60ED telescope might be just the compact high-quality grab-and-go or travel scope you have been searching for. That is the biggest difference between people’s setup like rj144 and me, they use the dedicated field flattener. 2a) You definitely need the field flattener for the AT60ED. 8x Reducer/Field Flattener, LNIB, I haven't used it as I upgraded to a larger scope just after I purchased this. Free Extras (or for shipping cost only, if they cannot be shipped in the same box as the telescope): The reducer/corrector not only reduces the focal length but also operates as a very effective field flattener. Without one of those two, the image, especially stars, will become distorted as you move away from the center of the image. Will pay with PayPal. 25 inch Page 1 of 2 - Best small refractor for wide field imaging - posted in Refractors : I am considering adding a small refractor for wide field imaging to complement my 80 mm APO refractor (480 mm f/l). But one thing I havent accounted for is if were packing for four people, taking my mount and the NP101 might not be possible. The Apertura 60 mm refractor utilizes optics made with Ohara FPL-53 glass to provide observers and astrophotographers with amazing contrast, excellent color Page 2 of 3 - Field flattener for visual? - posted in Eyepieces: For visual use, TSFlat2 screws into the diagonal body, or onto the end of the diag nose piece. The stars did look excellent on the left side and middle of the ASI2600MC APS-C sensor. gg/QHQQ8uysFhIf you're curious about how to connect a field flattener and/or reducer to your refractor telescope, then lo The field flattener also works surprisingly well with the 6", 8", and 10" Astro-Tech Ritchey-Chrétien astrographic reflectors. Whereas you can use the AT 0. Flattener Options for Stellarvue SV60EDS - posted in Refractors : I have a Stellarvue SV60EDS and also a Stellarvue Reducer/Flattener. I will be imaging with a Canon T7(2000D) for the first few months until I get the hang of it enough to move to a dedicated astro cam, which will likely be a AT60ED aberrations - backfocus issue or pinched optics - posted in Experienced Deep Sky Imaging: I have been using AT60ED with its dedicated field flattener. 95US) and a thread-on field flattener that yields a 41-mm image circle ($99. The AT60CAA will make your life much easier when using your AT60ED photographically. Good glass and focuser, and it’s perfect for use on a sky tracker. My inclination is to The William Optics Adjustable 0. But I have yet to see reviews of the S model. html https://www. 8X reducer/field flattener is designed for prime focus astrophotography with your AT80ED refractor. Messenger. 95). Posts: 2,492; Joined: 19 Jan 2012; Posted 13 August 2019 - 06:08 PM. I purchased one, but it is back ordered till February. The threads on the t-ring side of the flattener are 48mm male, so you need a wide T-ring to connect your DSLR. The AT60ed is a doublet refractor. https://www. The vignetted view is because I only had a 1. Can you please explain why that scopes have such different pricing? Thanks and regards! Seems I understand. Hoping for a first light tonight. ZWO ASI183MC on Sky-Watcher Evoguide50ED with the Sky-Watcher Evoguide 50ED Field Flattener. 3 reducer/corrector works great with the AT60ED. ASI183MC ASI2600MC PRo Has anyone tried a field flattener on their AT70ED yet? Field flattener vs field flattener focal reducer - posted in Beginning Deep Sky Imaging: Im very new to imaging. Newbie Questions - Canon 40D and Astro Tech AT60ED - posted in Beginning Deep Sky Imaging: Hello I have a used Canon 40D DSLR, an Astro Tech AT60ED and a 0. With the Apex ED reducer, an f/5. You will be a sad astrophoto puppy without it. Getting stretched Issues with AstroTech AT60ED and ATR8 Field Flattener - posted in Beginning Deep Sky Imaging: Took my AT60ED out for first light last night using the AstroTech ATR8 field flattener/0. Does anyone know if the field flattener for the AT60ED includes threads to screw in 2 filters? Then I need a M54 to M42 adapter to get it down to the Astrotech field flattener. I have two issues: 1) Looking at the images, I feel the back focus is less than the suggested 57 mm. One could employ the . Anyone know how I can install a 2 filter on the flattener? I was considering the smaller, wider field, AT60ED. It shows no chromatic aberration on anything I point it at. (Focal length of 360mm) I was initially considering the Astro Tech AT60ED but it is out of stock. yeah I get that, my 2 GSO Quartz diagonal has one of those proprietary threads, somewhere between 50-52mm with an unknown (and unpublished) pitch to boot. Im using a AT60ed with a canon rebel t6i DSLR , now im starting to feel comfortable enough to start using a zwo ASI120MC-S planetary cam i had stashed away. I am wondering if your diagonal is out of collimation. (From the website)the flattener produces wonderful flat fields as well as a 41mm image circle. Vanguard. The lens provides both the flexibility as a focal reducer and as a field flattener, as such it improves the visual performance with accuracy. This all-in-one reducer/flattener lowers the focal length by 0. I'm pairing the scope with a Sky Adventurer and a Sony A6000 APSC camera. The Astro-Tech AT60EDP astrograph provides an exceptionally flat field for very wide images that are sharp edge-to-edge, with no need for a separate field flattener. So until then I am stuck using scope uncorrected. I know this scope has other clones but I'm not exactly sure if I can use a different brand's field flattener, and if so, If you want to image with the AT60ED, then you need this flattener. astronom-refractor. AT60ED to guide AT72EDii? - posted in Beginning Deep Sky Imaging: I am starting to plan out a beginner imaging rig based around the AT72EDii (already have in hand). The diagonal was an Olivon 2" Amici Prism. 800-422-7876 Help with achieving a flat field with AT60ED - posted in Refractors : I purchased a used AT60ED about 6 months ago and I havent yet had any luck with achieving an acceptably flat field with this scope and Im hoping someone might be able to help me out. 8mm backfocus + ASI533mc Pro I guess I have to try another scope and without FF and pray it is not in the camera itself . This gives very good results in the TV-85. 8x flattener and have no complaints at all. In Astro-tech AT60ED + AT60FF (field flattener) + spacers to achieve 54. 800-422-7876. 95 Some general questions about field flatteners - posted in ATM, Optics and DIY Forum: As a short refractor owner (AT60ED f/6, Evoguide 50ED) and also a C11 owner, Ive been trying to learn more about field flatteners/correctors. Most of my wide field eyepieces show some minor level of astigmatism at the field edge without the flattener, which is reduced with the flattener. teleskophotography. I havent yet found basic info on how field flatteners are designed so I thought Id see if knowledgeable people here on CN could provide The Astro-Tech AT60ED telescope might be just the compact high-quality grab-and-go or travel scope you have been searching for. I would strongly recommend the AT60ED (Vs any SW offering noted above), with known glass (FPL-53 + Lanthanum), Any refractor appropriately matched with a flattener will have a flat field (ignoring other aberrations here), so a field flattener or reducer / flattener for imaging is a must. Field Flattener - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: Hi all. Pros of the SS61EDPHII: - Triplet (better star size?) - Comes with usable ring, handle bar, and dovetail. I have an At60ed f6 and a SV110ed. The flattener produces wonderful flat fields as well as a 41mm image circle. Back to top #12 Jeff Gardner Jeff Gardner. 8x Focal Reducer & Field Flattener is an optical accessory tool of advanced level, for upgrading astrophotography efforts. I want to use Astroberry and Im currently going through the EKOS and KSTARS manuals. How do I add a spacer and where? 2) I want to add a 2 inch filter (Optolong L-pro). 8x reducer flattener with the AT72 to This Astro-Tech 2" 0. Clear Skies, Phil. In this review, I’ll tell you why I think the William Optics Zenithstar 61 is a top contender when it AT60ED and 071MC-Pro spacer issue? - posted in Beginning Deep Sky Imaging: Im assuming this is a spacer issue? My setup is an AT60ED -> AT60ED field flattener -> 16. I think it provides splendid wide-field views. Apertura 60mm FPL-53 Doublet Refractor with Full Frame Field Flattener. How To Use a Field Flattener. Posts: 836; Joined: 19 Apr 2015; Posted 28 January 2020 - 02:50 AM. Make sure your t-ring will work with this particular You would need a field flattener for visual if you want to flatten the field for visual. More posts you Astro-tech field flattener choice - posted in Beginning Deep Sky Imaging: Hello all, I wanted to buy a field flattener for my AT111EDT and my AT72 (doublet FPL53). The threads on the t-ring side of the flattener are 48mm male. I also have the reducer/flattener, but am waiting for some bigger summer targets to use that on. 25 UHC filter and 1. 25 inch eyepiece This AT60ED works great with AT2FF field flattener and eliminates the need for any additional extension tube. The single tube ring allows the whole tube to rotate, and can be locked with the stainless steel thumbscrew. Using a field flattener is a no-brainer: just screw it at the back of your telescope or insert it in the telescope using a nosepiece. Buy DETAILS. 0x field flatteners, I couldn't find a flattener that would flatten According to FLO's website blurb, the corrector/reducer also has one ED element fitted 'An optional 0. I chose this one but I always choose wrong, so mods please move for Meade DSI I image - posted in Experienced Deep Sky Imaging: I recently picked up an at60ed and I do not have a field flattener yet and I do not have enough back focus to focus so instead of playing with my dslr I broke out I use an AT60ED with a TSFlat2 field flattener for visual, but the flattener is not designed for a focal length this short, so the field is not completely flat, but it's very much better. If you want to image with the AT60ED, then you need this flattener. Top 4% Rank by size . Visually, the scope works like a good but not exceptional 60mm apochromat. Telescopes, Astronomy, Binoculars. Sponsors. AT60ed & canon rebel t6i DSLR , now im starting to feel comfortable enough to start using a zwo ASI120MC-S planetary cam that i had stashed away. The Apertura 60mm FPL 53 Doublet Refractor, with a 2-inch field flattener, is an accurately constructed telescope designed for astrophotography and visual observation. Astronomics offers both a 1:1 field flattener and a 0. ($39. I recently came across the Apertura 60EDR and flattener (which is in stock) and it looks identical to the AT60. Checking the web site, the scope is in stock but the field flatener is not. The threads on the t-ring AT60ED Field Flattener Backspacing-DSLR - posted in Beginning Deep Sky Imaging: Hello all, I just wanted to know if any extra backspacing will be needed to use the field flattener with a M48 t-ring and DSLR (canon t2i). 25" diagonal to mount on T-thread and it gives a great visual view when attached directly to the AT2FF. If extra spacing is needed, how much space should there be and how does one achieve this spacing? Thanks! 2. 8mm" I have the Celestron 8SE with a focal reducer/corrector. What say you? If I could avoid a $150 purchase, it would be appreciated Stupid question # 461 reducer and Powermate at once? - posted in Beginning Deep Sky Imaging: So if Im using my AT60ED or 72EDii and I want the 0. 5 so looking for just a flattener. 8x field flattener (no stock currently) + William Optics 48mm T-mount for Sony E-mount. When using my ASI183MC with its smaller chip the corners arent too bad, but with the larger chip on the ASI2600MC Pro its a lot worse. An APEX-S + AT60ED = $800 for a lightweight, 60mm f/3. Now I am confused as which one to order. So the ONLY thing you may need to buy is the 42MM to 48MM adapter if the flattener did not come with one. 5 reducer on my AT60ED F/6 scope but it created severe comatic aberrations. 5mm -> 21mm -> 071MC-Pro. My understanding from the Astronomics website is the AT60ED plus the flattener should evenly illuminate a full How do I determine what I need for a field flattener? - posted in Beginning Deep Sky Imaging: I am almost to the point of purchase of a Apertura 60EDR refractor telescope. AT60ED - $369. Viking 1. With the 10mm The William Optics field flattener fits the AT60ED perfectly, as expected. If you are able to, I would look at the AT72ED, or the AT60ED (the latter of which I use for my imaging). So to make sure the field flattener is spaced correctly from the camera you need to know the distance from the camera's attachment thread to With reducer/flattener you will get shorter focal length, wider field of view and faster scope. Results with the flattener are better but I have seen images without flattener. Ive been using various camera lenses with canon eos. html > canon But the AT60 really isn't intended for planetary visual use. I can thread it into the camera side of the field flattener but the T-ring This thread on field flattener for the AT60ED is a must for full frame photography. 5x Powermate to get a little better reach for smaller targets? What sort of mess does it make? If you just look at the numbers, it is the same as using a 2x I was also curious about the combined 0. ADM; APM-Telescopes; Desert Sky Unable to achieve a flat field - posted in Refractors : I got an at60ed and a field flattener but have had no luck getting a flat field. Fast refractors have obvious field curvature, unless they are a Petzval or The fully-multicoated Astro-Tech ATRF60 converts the 360mm focal length f/6 Astro-Tech AT60ED refractor into a 288mm f/4. 0x flattener? Thanks! For the photographic field flattener to work properly it must be a precise distance from the camera sensor. Others say I need to purchase the Astro-Tech flattener specifically designed for my scope. Ranger Orion Flattener for AT60ED ? - posted in Beginning Deep Sky Imaging: I have an Orion field flattener that I would like to use with my AT60ED f/6 and Canon DSLR. 8x field flattener/reducer for correction, then can I use a 2. astronomrefractors. - Slightly shorter focal length (easier on my mount). html . Much better than the AT60ED with field flattener. Unless I crop, I have read that the stars outside the center will not be crisp. Back to top #7 Toddeo Toddeo. My primary use will be for visual without having to spend time in setting up stuff and possibly carrying while travelling. William Optics Flat 6AII flattener/reducer Adjustment - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: I have an explore scientific ED102CF with a focal length of 714 mm and I run it on an Advanced VX mount. This minimization of a vignettig improvement brings edge-to-edge sharpness, which is very Flattener or Flattener/reducer? - posted in Refractors : Hi all, I am thinking about buying a small refractor for AP, specifically the Astro-Tech AT60ED. Edited by awong101, 30 August 2021 - 02:25 PM. Reply reply More replies. 25 UV/IR block filter attached to the camera, thus reducing the overall field of view. It does have CA and most definitely could use a field flattener. 4 and is great for WFOV however I am wanting to shoot with the scopes native FL of 330mm at f/5. I use a 100mm f/4 Petzval for visual regularly. AT60EDP - $760 . I purchased the AT60ED for the intent of low power wider fields of view and the AT60ED certainly does not disappoint with this endevour. As to the price difference, the WO unit comes with the rotator so the price difference isn't as bad as it seems at first glance. But the threads are not 48mm and not SCT. It’s well worth the minimal cost for those starting out The Astro-Tech 60ED 1x flattener easily threads on to the focuser of your AT60ED after your remove the standard compression ring eyepiece holder. This instrument is designed as a n astrography. Some friends say it will work fine. If I remember correctly it's a M48-M48 spacer of about 17mm. Does the AT60ED Field Flattener include 2" mounted filter thread? - posted in Refractors : Looking for a wide field scope that is portable. Page 1 of 6 - Skywatcher Evolux 62ED Doublet Apo - posted in Refractors : Hi all, I was wondering if anyone has first hand experience with this new scope from Skywatcher, tailored specifically for wide field astrophotography? It really peaked my interest as this little scope seems to be in direct competition with other popular small scopes like the William Optics ZS61 and Page 1 of 2 - AT60ED or ? for widefield AP - posted in Beginning Deep Sky Imaging: I am looking for a widefield scope to pair with my ZWO ASI294MM at BIN 1. 8X reducer/field flattener is designed for prime focus astrophotography with the Astro-Tech AT72EDII, it will work with other variants of the same optical tube. 9x two-element focal reducer/field flattener, which includes one ED lens element and adaptor/field rotator is available separately, which when combined makes the Evolux-62ED into a four-lens optical system comprising two ED elements!'. 0x) + filter question - posted in Beginning Deep Sky Imaging: Quick question: Where would you include a 2 filter if using the AT60ED with its 1. BlueMoon likes this Back to top; Back to Refractors · Next Page 34 of 37 - AT60ED: Something Small From Our Sponsors - posted in Refractors : The AT60ED is shown as More On The Way at Astronomics. The lowest useful power is 11x, achieved with a 40mm eyepiece (a 40mm 1. Usually it's best to use one which is designed for scope. Basically, consider getting the same T adapter from William Optics. 2 micron pixels, a combination of the TS PhotoLine 60mm, f/6 FPL-53 apo plus the TSFlat60 plus a DSLR delivers a true focal length of 370mm, hence the TSFlat60 is really a My flattener has M42 threads. 6 system. 5 apo refractor becomes an incredibly fast f/3. I have a longish project with that to replace electronics, although as a non guided scope it is probably good for moon / planets. astronomtelescopes. 8mm from the rear flange of the flattener to the image sensor. 5 to f/7 telescopes and is stated to work well on the at72ed (https://www the ATRF60 is the only one out of the three that provided pinpoint stars to the corners in the AT60ED. 0x Adjustable Flattener + William Optics 48mm T-mount for Sony E-mount . No more having to adjust your optical tube in Someone told me to buy a flattener which is a $250 purchase to work with a $250 telescope, which seems out of proportion. Not much I can do about the football shaped stars out by the edges. I converted a 1. The website for the field flattener states "Backfocus from the rear shoulder of the AT60FF to the image plane is 54. 8x flattener reducer. As Sky & Telescope pointed out in their Hot Product citation, "With only a few noteworthy (and expensive) exceptions, refractors need optional field flatteners in order to deliver acceptable star images across the While this Astro-Tech ATRF60 0. I now have 8 Apache cases from Harbor Freight- work great! Back to top #8 ericthemantis ericthemantis. 9 screaming fast, flat astrograph that's both faster AND shorter focal length than the ridiculously-hard-to-find RedCat51IF this thing works properly. That said, the AT unit is 0. The included 2-inch field flattener guarantees veracious sharpness, making it The William Optics 0. This Astro-Tech ED refractor has: • 72mm f/6 fully multicoated FPL-53 and They also have a more generic 0. PS there's a dedicated flattener for AT60ED. Got a break in the clouds tonight so tried my new 2" GSO . However, I apparently had some severe tilt ~20% which caused issues on right side. You will screw the T-Ring to the field flattener, and the field flattener screws on to the scope, where the 1. Astro-Tech AT72EDII As a Travel Telescope - posted in Refractors : I own several 80mm refractors but am thinking about getting an Astro-Tech AT72EDII for traveling to Texas via airline for the 2024 total solar At some point you will want to get a field flattener or reducer to improve the star shapes in your images. I have several choices as: https://www. astronomed-doublet. I believe the threads are on the Curvature and BackFocus (Reducer/Flattener, Zenithstar61) - posted in Refractors : I have been trying to solve my issue of elongated stars in some corners for a month or so now since getting the William Optics Zenithstar 61 and the new Flattener/Reducer Flat61R which is advertised for full frame sensors. Paul Schroeder, Ptarmigan, zjc26138 and 13 others like this Back to top #2 adosaj adosaj. Last night I took out my AT60ED on a 501HDV fluid head with pan handle and Bogen 055XB tripod with push-up elevator column. I just purchased an at60ed but unfortunately the field flattener is out of stock. I will be using an ASIAir Plus and ZWO 30F3 mini guide scope for guiding. Im not sure what they are. 65x Reducer / Flattener £399. AT60ED . Buyer pays shipping. Seeking advice. Rokinon 135mm F/2 vs Astro-tech AT60ED w/ flattener Telescopes/Lenses This lens excels at wide field imaging, but unfortunately needs an astro modified camera to take advantage of it to its fullest, because like half of the things you can image at 135 mm will be nebulae, ASTRO-TECH AT60ED - posted in Refractors : Hello everyone Imperceptible CA, wide flat field with the flattener, small and light yet solid and robust. 8x per inch of aperture, this is very close to the 4x per inch of aperture generally regarded as . 8 with that combo. I wanted to mess around and take some images but I could not get I have an Astro-Tech 60ED 1x flattener for sale. - posted in Beginning Deep Sky Imaging: Greetings. I have the Astrotech Field Flattener that comes with my telescope and i was Optimum spacing is 54. Regarding the final image, I was not using its proper field flattener. My T-ring (which is a wide one) has M48 threads. 25” TeleVue Plössl will give you a 4. Look at the stars in the corners, theyre all distorted. I use a M43 format mirrorless camera and can fit the North American nebula within the field of this scope with sharp After lots of research and finally landing on the AT60ED for my Star Adventurer, I have preordered it. I have a canon 1300d on a skywatcher startravel 120. 72 arc sec/pixel with my camera. I bought the 0. 8X reducer/flattener for William Optics ZenithStar 61II - posted in Equipment (No astrophotography): Hi, currently Im using the William Optics ZenithStar 61II with 1x field flattener (non-adjustable) with ASI533MC PRO. 8x reducer/flattener (FLAT61R) on their AT60ED? What were the results? I know the FLAT61R is designed for the Z61, but I think it Would I be better off with the Flat61R on the AT60ED or the Astro-Tech . The AT72EDII has a focal length of 432, which 96% of the minimum recommended focal length of 450mm. Attached Thumbnails. But it's a personal choice. This could go in a number of different forums. - Has a flattener to use at native f/6. Availability is anticipated this summer. L. Edited by Sarkikos, 05 December 2019 - 09:33 AM. Im a total newbie (2). The f/5 focal ratio is not an issue at all for visual with the right eyepieces. The Astro-Tech 60ED 1x flattener easily threads on to the focuse View full details Original price $99. Astro-tech AT60ED + Astro-tech 0. 6 astrograph. I also use the TSFLat2 in the AT60ED 360mm focal length refractor. 95 $99. My current image train is (AT60ED > ATRF60 Flattener > ZWO filter try and spacers for 55mm backfocus > ASI Telescope AT60ED/Astrotech 2inch Field Flattener/T-ring/EOS EFtoRF Adapter/Canon R. AT80EDT field flattener? - posted in Beginning Deep Sky Imaging: I recently purchased an iOptron CEM26 and AT80EDT. Gary. I had to purchase a M42 to M48 thread adapter for the Flattener (Actually I think the flattener came with one). What kind of spacer is it so I can try to find a replacement? Back to top #2 premk19 premk19. AT60ED has camera angle adjuster. I am thinking that the field flattener is the problem, and that I should purchase the one that Astronomic made for it. at F/4. While this Astro-Tech ATRF72 0. Additionally, regarding 1. I was hoping my Orion 0. I have since sold my scope and never used the flattener so now it is up for sale. Any word on when they may be back in stock? When I checked about a week ago they were still 2 or more months out. Feel free to give us a call if you have a question about your scope if it isn’t an Astro-Tech product. On the High Point Scientific site they have a combo Help diagnosing tilt (or maybe incorrect back focus) - posted in Refractors : Hello all! I have been using the AT60ED for the past couple months without a field flattener, and finally got one in after quite a long backorder. Right? Edited by troll7, 02 December 2023 - 10:01 AM. Starizona Apex ED L 0. 00. Those are the extension tubes with lenses that I think you are talking about. But since it is a direct, screw-on attachment to the scope and my DSLR, there is no nosepiece to attach a filter to. Want to buy AT60FF ASTRO-TECH AT60ED FIELD FLATTENER. Ranger 4. I have narrowed it down to an AT60ED with a StellaMira 0. I plan to use them on an Explore Scientific PMC - 8 Mount. I have the Astrotech Field Flattener It uses two ED elements in its configuration, and has a wonderful flat field inherent in the petzval design. Unlike other models, the Altair 60 EDF has a rear camera-rotator allowing easy framing of the object in the eyepiece or camera field of view. Astronomics also sells a dedicated flattener and 0. The Z61 is the most portable telescope ever made by William Optics, a company with a reputation for building beautiful astrophotography refractors. This combo puts my rather small scope at 264mm f/4. Or, with smaller-increment spacers, it + the spacers become the nosepiece of the diagonal. How do you use a filter with the AT60ED if the flattener is threaded on? It seems like the Redcat is “easier” to use and seems to be a better match for A great accessory for your AT60ED photographic needs. If it is too far away from the sensor or too close, the stars around the edge will be distorted. As Im looking at guide scopes it occurred to me I could just pick up an AT60ED for a little more than a true guide scope and run dual scopes. With aps-c it's tack sharp. 5 to f/7 range that use a 2" focuser. It could be the 360mm focal length of the AT60 (80% of There are four new models of the Astro-Tech focal reducers and field flatteners designed to fit specific Astro-Tech refractor telescopes which include: – AT80ED . Believe it or not, the Meade F/6. I use ASI294MM pro or 294MCPro (4/3 camera sensor with this camera) However, I am getting really bad star shapes in the corners. My question, should I purchase ff or the ff fr. 8X reducer for it that work great at a bargain price. Nice 360mm F/6 doublet with FPL-53 synthetic fluorite and Lanthanum lenses. At 3. Its advanced FPL 53 optical glass virtually eliminates chromatic aberration, ensuring crisp, infallible images of celestial objects. The My AT60ED, on a Vixen Mobile Porta, showing the Astro-Tech universal dovetail plate (dovetail bar): Astro-Tech 7" universal dovetail plate. Back to top #10 Sarkikos If FC is a problem, the cure is a) a field flattener for the scope, or b) stay away Redcat vs AT60ED - posted in Refractors : When using an iOptron Skyguider Pro, which scope would be best for some “closer” shots? The AT60ED (with the field flattener) is quite a bit cheaper (when it’s in stock!). I still need to check out the TSFLAT2 in my SW120ED. I was of the mind that when it came out I got the flattener and the scope at the same time, the WO item. I'll show you an example soon. Gemini. it is almost 2 lbs heavier than the AT60ED which once you factor in the weight of a camera would overload the mount. But there are a few technical things to sort out when using a field flattener: Page 21 of 37 - AT60ED: Something Small From Our Sponsors - posted in Refractors : Alright, I got my field flattener and camera angle adjuster a week or two ago, and finally got some clear skies on Friday to try it all out. I do use a spacer between the diagonal body and the TSFLAT2, like Oldfracguy. Posts: 437; Joined: 12 Sep 2011; Posted 26 May 2019 - Page 31 of 37 - AT60ED: Something Small From Our Sponsors - posted in Refractors : Here are a few of the images I took with the ASI294MC camera, with the Meade F/6. Seeing was average. Current set up: at60ed > this field flattener: https://www. 2° field at that power). Join me on Discord: https://discord. mkrir imay fbavlt kbtoc fxyor ridsn qcmx emnsze owusfnp femfx