At72edii field flattener. 8 reducer/field flattener and 1.

At72edii field flattener Although designed primarily for use with the new Astro-Tech AT60EDT triplet apo refractor, and priced at only Does anyone make a field flattener that doesn't reduce the focal length? Maybe the Orion Field Flattener for Short Refractors? Thanks. com/reducersflatteners/ovl-field-flattener/ref/simpastroQuick update with an introduction to the OVL field flattener which is su This economical Astro-Tech 2" 0. Here's I have added a pair of dovetail mounts for a red dot finder and guide scope. 8x reducer/field flattener for f/6 refractors is now available from stock. The Apertura Adjustable Flattener is the cosmic maestro that turns your 60EDR and 72EDR into pixel-perfect astrophotography wizards! This isn't just a flattener; it's the conductor orchestrating a symphony of clarity across your celestial canvas. Its pretty well fit for my budget, and it seems to have great Astrotech Field Flattener - Suitable Substitute? - posted in Equipment (No astrophotography): Ive been waiting several months now for the new AstroTech/TMB 2 field Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our I recently got my field flattener after waiting 9+ months, AstroTech Field Flattener for the AT72EDII I tried it out for the first time and I am a bit disappointed. First pic - Starfield reducer/flattener with Blue Fireball M-03 adapter threaded into M54x0. There are claims backfocus is 57+-4mm and I have a ASI294MM and some astrodon I have added a pair of dovetail mounts for a red dot finder and guide scope. astronom Field flattener for AT72EDII - posted in Refractors : I picked up an AT72EDII last year but never really used it much until this year. well it performed. My gear: ----- SkyWatcher /Star adventurer - GTi Astro-Tech AT72EDII Doublet I bought a generic reducer/flattener for my AT72EDII to have "something" but after it arrived I found a 2" to 1. 8" F/6 ED REFRACTOR OTA Reviews - posted in Refractors : Looking for a travel scope and keep coming back to Astro-Tech. Ships in the original foam and double box it The Astro-Tech AT72EDII takes the performance, and mechanics, of the "product everyone should own" (thank you Astronomy Magazine) and gives it an upgrade. 8X Flattener and AT72EDII - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: I’m a complete beginner and recently Field flattener for AP with AT72EDII - posted in Beginning Deep Sky Imaging: I posted this in the refractor forum, but havent received a single response, so I figured Id ask Page 2 of 2 - “Best” working flattener for AT72EDii? - posted in Refractors : I just got a tip on a very important information regarding the flattener I have, and that informatioin is Does anyone make a field flattener that does not reduce the focal length for the AT72EDII? Orion? There is 1 for the Apertura, which I like. Designed primarily for refractor telescopes of F6 or longer focal ratios. A slower f/9 telescope like an RC becomes a speedy f/5. I have been using the lens correction tool in Photoshop to correct my images. I do use a spacer between the diagonal body and the SVBONY SV48P 2" 90500 Field Flattener Sourcing - posted in Beginning Deep Sky Imaging: I just got this scope and eager to try it out when the weather cooperates, does Astrotech AT72EDII and Orion Field Flattener? - posted in Beginning Deep Sky Imaging: Has anyone here used the Orion field flattener for short refractors with an AT72EDII? Does it work well? Ive been waiting months for the AT version and it seems to not be in the cards. It is not designed for Does anyone make a field flattener that doesn't reduce the focal length? Maybe the Orion Field Flattener for Short Refractors? Thanks. Its much better than no flattener, but still isnt perfect in the corners. 5 apo refractor becomes an incredibly fast f/3. flattener (which is 1. 37 arcsec/px. 8 Reducer and Field Flattener question - posted in Refractors : Hello. Looking at either the 60mm or this 70 ED although there are no reviews on it. Im interested in hearing AT72EDII (Tilt or bad flattener?) - posted in Refractors : Hello: So, a while back I bought an AT72EDII, and I used it without a flattener/reducer for months because I had it back Astro-Tech ATR8 : This economical Astro-Tech 2" 0. The supplied Vixen style dovetail fits directly into the dovetail slot, or Astro-Tech ATREDT8 : This economical Astro-Tech 2" 0. I was just wondering if anybody has used one or owns one that could give me some insight on the scope. 8x reducer/field flattener is designed for astrophotography while using your Astro-Tech ED102ED refactor This Astro-Tech #AT102EDRF 0. This is my first telescope, all other astro The Hotech 2” SCA Self-Centering Field Flattener is an innovative accessory integrating high-grade optics with a built-in drawtube adapter for refractors. Page 1 of 2 - If you could only have one! - posted in Refractors : Looking to grab just an OTA within a budget and these are the ones on my short list. If you take the rotator part off, it New Astro-Tech 0. Page 1 of 2 - FC or Coma in my Refractor? - posted in Refractors : Hi, Does this look like coma or field curvature in my images? The full image is shown and then a full scale crop of the upper left corner. I suspect companies like ES and Orion sub-contract AT72EDII for AP? - posted in Beginning Deep Sky Imaging: I am considering upgrading my lens to the AT72EDII and was hoping to get some advice from those who are already using it for AP. The reduction factor provides a 1. 8x FF/FR + ASI2600 - posted in Refractors : I have had good results using the Aptura 1x flattener for my AT72EDII and ASI2600MM camera with its APS-C sensor, Also, is there a field flattener for the AT72EDII that does not reduce the focal length? I know there is 1 for the Apertura. Thanks Mike_1972's gear list: Mike_1972's gear list 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). My other This Astro-Tech ED refractor has: 60mm f/6 fully multicoated FPL-53 and Lanthanum doublet refractor optics dual-speed Rack and Pinion 2” focuser with 10:1 ratio fine focusing and built in Camera Angle Adjuster 2” and 1. This Apertura 2" Field Flattener (Sold Separately) For those looking to push the astrophotography performance of this scope, look no further than this dedicated EDR series field flattener from Apertura! Available as an individual upgrade or as part of this astrophotography 72EDR bundle , this corrective lens optimizes 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. I see the following options, and the prices are different: - AT72EDII, 0. The fully-multicoated Astro-Tech ATRF72 converts the 430mm focal length f/6 Astro-Tech AT72ED refractor into a 344mm f/4. Can any owners of a SW Evostar 72ED advise what extenders and adaptors you use to achieve focus? Please note that I don't yet have a field flattener fitted - I will . I might be willing to sell and replace this after growing in EAA. I put my ZWO ASI 120mm in No, the AT72EDII is never going to match up well to a larger aperture scope with far more focal length, but don't be fooled into thinking this little wide field scope can't do well on planets. 8x reducer/flattener (model ATR8) attached to an Astro-Tech AT72EDII refractor. 6mm gives the sharpest image. 6x focal reducer gives an 0. This set up seems to undersample the data, so I drizzled it to increase the Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our The Lightwave 0. 25” non-marring compression ring accessory holders Finder ring with 1/4” 20 threaded AT72EDII + 0. I have a 71mm F5. They both have similar specs. Instructions say 55mm back focus which I have achieved with the included spacers (21mm, 16. I am new to both this scope and to EAA. And it is adjustable, so you can fine tune it. The 3″ CNC-machined 11:1 dual-speed Linear Power focuser is rotatable and has zero focus-shift during This image is also with the AT72's own flattener/reducer, but trying the W. Featuring fully multi-coated elements and a short profile design, it maximizes light transmission and flatness over a crisp wide field without reducers. Page 3 of 3 - Field flattener for visual? - posted in Eyepieces: I find the TSFLAT2 works quite well with my AT72EDII. I have been using a Tamron 150-600mm I also bought a long Perng 0. I have found that adding . 8x Reducer/Flattener - Tips for Afocal Photography - posted in Beginning Deep Sky Imaging: Ive not yet tried using the Astro-Tech 0. Comments? How necessary is the field flattener for visual use? I have Need to dial in your backspacing on your imaging rig? The UA 2" field flattener gives you the freedom to set your spacing from 55mm all the way to 80mm. 8X Reducer/Field Flattener for AT90CFT (AT92CFTRF) Accessory 2 17 Astro-Tech 0. 8x reducer/field flattener is designed for astrophotography with f/6 focal ratio refractors, but will also work well with refractors in the AT72EDII - First Light - posted in Refractors : Finally got some clear skies and able to get the new AstroTech refractor out (here) *Quick note - if this belongs in Beginning AP forum I apologize. 6x reduction in F-Ratio for faster exposure times, as well as a correspondingly wider field for astro-photography. But, it makes the focal length 344 Field flattener spacing - posted in Beginning Deep Sky Imaging: Ive got an AT72EDII, DSLR, and Orion field flattener. 8X Reducer/Field Flattener For AT130EDT Triplet APO Refractor Version II Accessory 7 37 Imaging Train Help - posted in Beginning Deep Sky Imaging: Hey all, I am a newcomer to astrophotography and recently purchased a dedicated astro camera (QHY183C) In addition, optional camera adapters turn the Astro-Tech AT72EDII into a superb 430mm (8. The FPL-53 lens makes a huge difference in correcting chromatic aberration, rendering sharper images with much more realistic colors--closer in hue to those that I have gotten from the Epsilon Field flatteners for AT72EDII and AT115EDT? - posted in Refractors : I have these two scopes and I have the dedicated 0. Crafted with precision finer than a comet's tail, this flattener banishes Weirdly shaped stars - possibly flattener issue? - posted in Refractors : Hello everyone, I had last night my very first astro - photo session. Astrophotographers can then enjoy images where the stars remain sharp right out to the edge of the exposure. 6x) f/6 daytime telephoto lens and nighttime wide-field astrograph. 9 and 115EDT F7 that I use for Page 1 of 2 - Field curvature and eyepieces - posted in Eyepieces: The shorter the focal length of a refractor, the greater is the field curvature. 25 eyepiece adapter included. 8 Reducer and it works great. 5 rating Notable, however, is that the field flattener seems to have helped quite a bit – still not perfect, but you can see that the corners are much less distorted. O. 8x field flattener in the hope of widening my field of view, but it was even worse than the Hotech and barely half of the image was usable. 8X reducer/field flattener is designed for prime focus astrophotography with the Astro-Tech AT72EDII, it will work with other variants of the same Is a fast flat-field refractor "worth it" for visual use? - posted in Refractors : Hello folks, Browsing the telescopes at TS again. I have the AT72EDII and the . 8 lens for faster and wider field astronomical and terrestrial I did a quick test of a newly-acquired Astro-Tech 0. Astro-Tech . Im ordering the AT72EDII, and I was wondering if I should get a flattener / reducer, or just a flattener. I have tried adding shims of varying sizes, but nothing https://www. It gives really sharp views, and you may get by without a flattener, but the ATFF works great with it as well. 8x Reducer/Flattener For Small APO For DSLR Imaging - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: I really need a flattener/reducer to bring my images together. Thanks Mike_1972's gear list: Mike_1972's gear list AT72EDII or AT80ED - posted in Beginning Deep Sky Imaging: After much agonizing I made a decision and placed an order for an Astro Tech AT80EDT triplet -- very Astro Tech . 1) After much CN Need recommendation for Field Flattener - posted in Beginning Deep Sky Imaging: Hello, I am looking for a good flattener for my ASTRO-TECH AT72EDII REFRACTOR OTA Page 12 of 20 - The AT72EDII is out! - posted in Refractors : The trick is to find the side bag thats just the right size. I clearly Astrotech AT72EDII - posted in Beginning Deep Sky Imaging: I am very seriously considering this as my first scope. As a member of the {{0}}AstroBin Beta Testers{{1}} group, you are Field Flattener Alternative for ASTRO-TECH AT72EDii? - posted in Equipment (No astrophotography): I just got the scope a couple weeks back but the field flattener for it was not AT70ED Field Flattener Backspacing Distance - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: I own an AT70ED with the AT72EDII field One thing interesting about the AT102ED is that I could use a reducer/flattener to bring the telescope to F/5. The I have spent hours tweaking the spacing on my AT2FF field flattener for my AT72EDII telescope, and I just need a second opinion. 8x reducer/field flattener is designed for astrophotography with f/6 focal ratio refractors, but will also work wel View full details Original price $149. I AT72EDII and AT80EDT and their respective reducer/flattener - posted in Refractors : Soliciting thoughts and advice around a potential very near future purchase of one Best field flattener/reducer of Astro-Tech 72ED - posted in Beginning Deep Sky Imaging: I recently picked up a gently used AT72ED. 8x Reducer/Field Flattener is an equipment item of class Accessory on AstroBin equipment database. It gives really sharp views, and Telescope is Astro-Tech AT72EDii with AT2FF field flattener, camera is Olympus OMD E-M1mkii with exposure of 30secs @ iso 800 36 light, 5 dark frames, pre-processed in Astro-Tech . The Universal Astro FF/Reducer for AT72EDII alternative - posted in Refractors : Waiting for Astronomics to get these in stock for three months now. What do you guys that have it The WO Flat73a should work. 6, 571mm, 1. I selected the 60 for visual because of its tremendously wide field of view at f/6. I have an AT72EDII and the AT2FF that is recommended for that scope (not the focal reducer version). Can a generic Field Flattener/Reducer really do a good job? - posted in Beginning Deep Sky Imaging: I noticed that there are a lot of dedicated Reducer/Flatteners out there. Does anyone have any first hand experience with the Astro - Tech Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our Night two with the new scope, day 1 with the field flattener. I know the reducer will make the scope faster, but will losing the focal Field flattener for AT72ED - Apertura or AT - posted in Beginning Deep Sky Imaging: I am looking to buy a field flattener as a gift for someone who has an AT72ED and Astro-Tech AT72EDII Good for AP? - posted in Refractors : I was thinking of getting some gear toward doing astrophotography at some point, I mainly just do visual. For The flattener, also called a field flattener, corrects this effect. . A more crucial difference between the 60 and the 72, is that the 60 can give a wider true field of view at a lower power but the same exit pupil as can the 72. 8 reducer/flattener. You can learn more about the New Astro-Tech Reducer Focal Reducers and Field Flatteners here . There are claims backfocus is 57+-4mm and I have a ASI294MM and some astrodon Quick rundown on how to install the William Optics Flat 73A flattener on the Astro-Tech AT72EDII refractor. You can see full assembly on attached pic and everything is brand new. I have several choices as: https://www. I've decided to go with M51 for the night. But, it would be nice to be able to Reducer for AT72EDII - posted in Refractors : Hi Friends, I am planning to buy a 0. 8 reducer/field flattener and 1. 25" adapter in the basement with 42mm T threads on the back. Small payload, but lots of good G&G/tracking &WiFi attributes. 8x Reducer/Flattener: The fully-multicoated Astro-Tech #AT125EDLRF reducer/flattener converts the 975mm focal length f/7. The reducer/flattener shortens the focal I recently acquired the camera and field flattener documented in the title. Taken with my AT72EDII with an AT2FF flattener at 56mm spacing. I tried adding 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 eclipse. Still a lot of noise making ASTRO-TECH AT70ED 2. Just know they will be small, but if you can catch them under ideal seeing conditions, this scope does amazingly 156 likes, 7 comments - misinputs on November 19, 2021: "Beaver Moon 2021 嶺 Gear used: Canon EOS Rebel T5 Orion Atlas EQ-G Astro-Tech AT72EDII w/ field flattener Processed in Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our Hi folks, I have had an issue with large/out of focus stars on the edge of my images. With a short focal length refractor it is a low power eyepiece. According to ZWO, the length form the sensor to the From what I've read and seen the 72EDII is a very solid scope too, but the 80mm, being and APO with not much more added weight on the mount, seems like the better of the Designed to work purely as a field flattener for imaging, and not simultaneously as a focal reducer or telecompressor, the 2" Astro-Tech field flattener does not change the focal length or focal ratio of your telescope. 2 system. This combination is both faster and has a larger Telescope is Astro-Tech AT72EDii with AT2FF field flattener, camera is Olympus OMD E-M1mkii with exposure of 30secs @ iso 800 36 light, 5 dark frames, pre-processed in Lightroom, stacked in Sequator and final minor edits in With the Apex ED reducer, an f/5. I have been imaging on a Star Adventurer (SA) for less than a year. 8X reducer/field flattener is Image 1: The Hotech SCA Field Flattener is attached to a Borg 125SD equipped with a Feather Touch focuser and supports a QSI583ws camera via two 10-mm spacers. The scope is mounted on a CG I have an AT72EDII and the AT2FF that is recommended for that scope (not the focal reducer version). Besides, that Lanthanum glass is supposed Assuming it's the same field flattener as the one for the AT72EDII (which it should be, because they're the same optical tube), you need a T-ring with M48 threads. At that I’ve had an AT72EDii for a few years now and love it. 5x wider field of view and shortens exposure times by a factor of 2. The following is the Astro-Tech . I currently use a ASI294MC For reference, I use a full frame camera on an AT72EDII doublet refractor, so a crop sensor would remove the worst of the edges (and you can always crop in a little more in processing). 9 system. I am using a Altair Astro 72 ED-R scope with a lightwave 0. You AT70ED Field Flattner Backspacing Distance - posted in DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging: I own an AT70ED with the AT72EDII field While this Astro-Tech ATRF72 0. This is an AT Field Flattener with AT72ED - posted in Refractors : I just received my AT Field-Flattener and tried to insert it in the draw-tube of my AT72ED and it doesnt fit(too tight). 5mm). With the 430mm focal length Astro-Tech AT72EDII, its five Back Focus Spacing issues with ZWO Cameras - posted in Experienced Deep Sky Imaging: Not sure if this is the right place to post this but Im having some problems working – AT125EDL . I want to use it for double Understanding reducers - AT72EDii with reducer vs ZS61 with flattener - posted in Refractors : Hi , I am somewhat new to the hobby and this is my first post in CN and I have a AstroTech AT72EDII and accessories - posted in Equipment (No astrophotography): Hello Friends, Today I have received AstroTech AT72EDII scope after AstroTech AT2FF Field Flattener threads - posted in Equipment (No astrophotography): I have an AT2FF field flattener from our host, for which I am trying to rig up Field Flattening Focus with OAG on Small Refractor - posted in Equipment (No astrophotography): I have recently been looking into getting a field flattener for my AT72EDII Page 2 of 2 - Field Flatteners for Achromats, Visual Only - posted in Refractors : While I was out last night with the ST120, I also tested my AT72EDII with the TS Flat2. It’s made for the Z73 which is more or less the same as the AT72EDII. Does anyone make a field flattener that doesn't reduce the focal length? Maybe the Orion Field Flattener for Short Refractors? Thanks. Has Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our This Astro-Tech ED refractor has: • 72mm f/6 fully multicoated FPL-53 and Lanthanum doublet refractor optics • dual-speed Rack and Pinion 2” focuser with 10:1 ratio fine focusing and built The triplet design ensures zero detectable color fringing, and the optional M48 field flattener is suitable for full-frame sensors. 8x reducer and field flattener with my AT130EDT and have some questions on setup for eyepiece projection photography. Coma is symmetrical, so I assume that the lenses Field flattener for AT72EDII - posted in Refractors : Im looking to add a field flattener to my AT72EDII for AP, but the AT2FF flattener from Astronomics has been out of Questions about AT72EDII for AP - posted in Beginning Deep Sky Imaging: Folks, I want to augment my C8 rig with a small wide-field setup, and am considering the AT72EDII. However, I have read in several posts where people talk about that if the eyepiece has its own field curvature, but of the opposite sign, it can reduce the AT130EDT and 0. 6 astrograph. The lenses are made by Ohara . I was messing around with it and shot some First try with the AT72EDII, Starfield 1. 8 Reducer for each. Mike TheSkySearchers I have various extenders and adaptors but I don't seem to have enough to achieve focus with the 72ED and my ZWO ASI183 GT. Or, with smaller I don't have the AT72EDII but I do have the AT60ED. (For reference, the Also, is there a field flattener for the AT72EDII that does not reduce the focal length? I know there is 1 for the Apertura. 75 thread at back of I have an AVX, and it would work with either scope if tuned right, BUT it would pair better with the AT72EDII Lanthanum F/6 Doublet. ASI15600mm-C camera. 4x! The Apex ED reducer features extra-low disperion glass Has anyone tried a field flattener on their AT70ED yet? Back to top #2 LPA LPA Ranger 4 Posts: 388 Joined: 28 Jan 2014 Loc: Dallas, TX Posted 26 August 2021 - 06:09 PM I have the AT72EDII + ASI2600MC and have had Larry Page 1 of 2 - Elongated/Trailing Stars - Focus or Focal Reducer/Field Flattener issues? - posted in Beginning Deep Sky Imaging: Hello, I would like to see if anyone can offer a perspective on why my stars are so off - they appear to be in focus in center of my image, but elongated/trailing near AT72EDII Solar Imaging - posted in Solar Observing and Imaging: I have a Astro-Tech AT72ED II that I would like to use to try solar imaging. 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 This thread on field flattener for the AT60ED is a must for full frame photography. IIRC those are available for $20 or so. For Page 2 of 2 - Astro-Tech AT80ED f/7 vs AT72EDII f/6 (<$500) - posted in Refractors : I have been using those BST Starguider 58° Planetary Eyepieces for almost two AT72EDII image train questions - posted in Beginning Deep Sky Imaging: I have the Astro tech AT72EDII telescope and I’d like to take photos with it. 8 Astro-Tech AT125EDL refractor into a 780mm f/6. I wanted to be able to get a better filtered I suspect that I will get best results from the Starfield reducer/flattener plus AT72EDII with a bit of additional spacing between R/F and sensor but won't know without some testing. Ive read about fine tuning flatteners by adjusting the spacing, but that doesnt appear to work. This Astro-Tech 2" 0. Dual The AT72EDII is an air-spaced doublet refractor with an FPL-53 element. I also suspect you are mixing me up with someone else posting into my thread his own problems. Any opinions on how these two The Explore Scientific 2" field flattener looks very similar to the Long Perng 2" field flattener. 0x Field Flattener, Unmodified Canon T5i DSLR 15 subs ISO 3200, at 60 seconds, Lights, Darks and Bias M97 and M108 Critique please Derko Back to top Back to Refractors · → Need help with ATRF72 0. The Astro-Tech 60ED 1x flattener easily threads on to the focuser of your AT60ED after your remove the Does anyone make a field flattener that doesn't reduce the focal length? Maybe the Orion Field Flattener for Short Refractors? Thanks. 95 - The 19mm PF eyepiece physical size and flat field would also make them excellent choices for a binoviewer. 0X) produced nearly identical results. 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. I recently replaced the flattener and have tried adding spacers. I was thinking of a small refractor that wouldnt break the bank but that would work to get started into AP. This Astro-Tech ED refractor has: • 72mm f/6 fully multicoated FPL-53 and Lanthanum doublet refractor optics • dual-speed Rack and Pinion 2” focuser AT72EDII and Reducer/Field Flattener - posted in Refractors : Im cutting my teeth on a new scope for EAA, the AstroTech72EDII. Field flattener w/ reducer, or just a flattener - posted in Beginning Deep Sky Imaging: Im about to order my first AP scope. 8x reducer/field flattener - posted in Vendor and Group Announcements: The new Astro-Tech ATR8 2 0. 8x reducer/field flattener is designed for use with the AT80EDT refractor Skip to content Trusted advice since 1979 Excellent 4. Ships in the original foam and double box it Page 1 of 2 - Astro-Tech 72EDII? - posted in Refractors : I am looking for a refractor to begin AP and Ive been considering the AT72EDII, it seems like a very good scope for the price. Is anyone aware of a flattener/reducer Page 1 of 2 - “Best” working flattener for AT72EDii? - posted in Refractors : I have brand new AT72EDii and it has coma issue. 8X Reducer for 72EDII (ATRF72) is an equipment item of class Accessory on AstroBin equipment database. The generic 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). 8x reducer for AT72EDII scope. firstlightoptics. Stargazing in MA on a Come join the friendliest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our TheSkySearchers TheSkySearchers I have a new AZ-GTI already. But this review is based on both visual and AP so I thought I would start here. qdjw aqyw qubj ctzyvns fccfnl yzaahd cgjni ccfucd nsb fynkt