Win some, lose some. The scope is a f/5. 800-422-7876. The Astro-Tech 102ED is a handsome 102mm F/7 refractor. Donation is not required by any means, so please enjoy your stay. You need to space an extra 9. I have talked to the people at astronmics. 8 with the optional Altair Astro 0. Orion 2” dielectric diagonal. 8x reducer you get a fast flat field astrograph operating at f/4. Our calculator, at typical seeing of 2-4”, uses the Nyquist formula of 1/2 and the 1/3 to stop stars becoming square so the optimal range is between 0. Back to top #7 nicknacknock nicknacknock. William Optics RedCat 51 (Upgraded Version) + William Optics 48mm T-mount for Sony E-mount 2. ? Basically, as my first proper scope, is it worth to spend that $100? I also. 25" (286mm) deep including the feet that prevent the case from resting directly on the ground. Telescope Express TS Photoline 60mm f/6 is the same scope as the AT60ED, but a different color. 00. Add To Cart. Pocketprep has over 1000 covering the 7th edition. This Astro-Tech AT70ED refractor has: • Single ring with a foot that has a 1/4" 20 thread hole for easy attachment to a dovetail. Fun to view with. Therefore, you need to fill in (37. 8X Reducer for 60ED (ATRF60) Software Adobe Photoshop · Pleiades Astrophoto PixInsight · Steffen Hirtle GraXpert Guiding. This Astro-Tech AT80ED refractor has: • split tube rings with detachable Vixen-style dovetail for installation on virtually any mount. Astro-tech AT60ED + Astro-tech 0. Astro-tech 60ED with FPL53 glass (like new condition) Astro-tech . The back focus is 55mm from the shoulder of the reducer to the. For the Astro-Tech Reducer/Flattener the spacing is 55mm with image circle. An SVBONY SV165 guide-scope fitted with a QHY-5II-M guide camera was mounted on the imaging scope. Celestron Astro Fi 6" SCT WiFi Telescope £799. It not only has great reviews, has FPL-53ED glass, and a clear price advantage. 5 to f/7 or so. It goes through numerous inspections, at the factory, at Tecnosky and Rupert at Astrograph also checks it out before dispatch. . 6 72ED Astronomical Telescope $463. 5" rack-and-pinion focuser with 10:1 ratio fine focusing. 4KidsOneCamera • 3 yr. AstroBin is an image hosting platform and social network for amateur astronomers and astrophotographers. 00. Sharpstar 60ED Astronomical Telescope $366 / $436 with Flattener. It's faster than the AT-60ED, I don't see astigmatism with the 31mm Nagler in my NP-101. 2" aperture f/5 (530mm focal length) four-lens photo/visual system using two ED (Extra-low Dispersion) glass elements. 8 reducer for ED60. 95, the ATR8 will work well with any brand of apo or achromatic refractor with a 2" focuser and operating at a focal ratio of. The scope weighs in at a light 3. WO Zenithstar 61 APO $478. Choose an option. Astro-tech 60ED FPL53 glass wide FOV imaging setup. Page 14 of 23 - Astro-Tech 80EDL owners thread - posted in Refractors : Now I realize that it’s much easier to produce an 80mm doublet with minimal aberrations than it is to produce a more complex 180mm triplet at the same focal length, but regardless, this AT80EDL appears to be a good example of the right way to make a scope. I'm VERY pleased with my AT115EDT. Sharpstar 60ED Astronomical Telescope $366 / $436 with Flattener. Page 1 of 3 - Star Tests: 60mm Sears vs. Should be the same as the tsoptics 60ed and Apertura 60ed and Astro tech 60ed ReplyThe Altair XRINGS are a strong, lightweight way to mount your refractor. On the front end, the retractable dew shield has an OD of 121mm, in case anyone is considering putting a filter there. The Astronomics listing for this. Apertura 60mm APO Refractor Specifications. ) They also have reviewed the higher spec Growler 40 some time ago. Sears 60mm x 700mm "Discoverer" (Towa) achromat, circa 1968, vs. Guidescope Suitability Calculator. -- John Vienna, VA iexos-100-2, Orion 80 ED, Astro-Tech 60ED, Celestron Comet Catcher, Nikon D90 astro modified, SVBONY SV165 40mm, SVBONY 905c guide camera. The Astro-Tech 1. Camera lenses are not really suited for deep sky photography. It's a 102mm f/7 doublet refractor made with fk61 ED glass. 8X Reducer for AT102EDL (AT102EDLRF)GetLeadsFast, LLC. Wanted. 4KidsOneCamera • 3 yr. ( 3. in small batches and is often on back order, the SW 120 is easy to find. SWAS70ED-OTA, plus 0. Too many 60-62mm options! - posted in Beginning Deep Sky Imaging: Im going to be in the market for a 60-62mm refractor in a few weeks - to mount on my Star Adventurer. 2 oz with the rings and dovetail, 5 lbs 4 oz without rings and dovetail. The flattener produces wonderful flat fields as well as a 41mm image circle. 72X Reducer for AT152EDT (AT152FF) Accessory: 1: 1: Astro-Tech . This new Astro-Tech AT80EDT refractor has: • 80mm f/6 fully multicoated triplet apochromatic optics using an ED center element. • 2" and 1. 1 lbs: Keep in mind, the weight of these configurations will vary depending on the exact camera body you are using, and does not include any extra weight such as field flatteners, filters, or guide telescopes. Not wise. ExploreStars is really oriented for visual use - which it is good at - rather than astrophotography. I mainly do imaging so the Astro-tech is a FPL-51 triplet and the APM is a FPL-53 doublet, I have a hard time figuring out which is better. Includes the following; 6260 mini 60Ed, 7060 tube rings, 7857 helical focuser, 7604 extention tube, 7364 adapter,7920 adapter, 7317 eyepiece holder and 7885 . 1. According to Aperturas website, the flattener should be set to 3mm for the. Same ratio applies if each is mated to a 0. Astro-Tech AT65Q ED. Re: AT70ED. 5" long with the dewshield retracted and 12. Really nice and bright, especially (“esp. Astro-Tech 60ED Unboxed Equipment Discussions. My goal in purchasing the Astro-Tech 60ED is to have a very portable scope that lets me take moderately closer glimpses at deep sky targets of interest to me. Hopefully someone here has. 25" · Optolong Green 1. I want to invest in my first astrophotography telescope which would be used with my iOptron SkyGuider Pro. For sale is arguably the MOST portable astronomical telescope on the market: the Astro-Tech AT60ED 60mm F/6 FPL-53 ED Doublet with a focal length of 360 mm and a focal ratio of f/6. One of those world class designers was Thomas Back. Clear Skies, Phil. 8x Reducer Field Flattener For the 60ED Optical Tubes. Having heard many good things. Astro Tech AT60ED Bahtinov Focus Mask -RED-AT60ED . Skywatcher. I already have a Skywatcher ED100 that Im very fond of, but a smaller scope for both grab-and-go visual use and wider-field imaging sounds appealing. California nebula Astro-Tech 60ED test Equipment Imaging Telescopes Or Lenses Astro-Tech astrotech 60mm Imaging Cameras ZWO ASI1600MM COOL Mounts iOptron iEQ45 Pro Filters Astronomik Blue 31mm · Astronomik Green 31mm · Astronomik Red 31mm · Astronomik Lum 31mm · Astronomik H-Alpha 6nmAstro-tech 60ED FPL53 glass wide FOV imaging setup. The set up new is over $1,150 plus shipping. Focusing Masks For Telescopes. 8x Reducer Field Flattener For the 72EDII Optical Tubes. 95. 95. Aperture-wise is there huge difference in the amount of light that they are capturing? Is the price increase due to lens quality and construction. ") at 15mm. It is not too heavy and gives you a focal length of 288mm. Star charts generated using Cartes du Ciel. FocusKnobs. However, for 80mm refractors and smaller, my new favorite Grab-and-Go mount is this one, the Sky-Watcher. 2. $139. 00 £315. Former President Trump on Monday hired white collar defense attorney Todd Blanche to lead his legal team ahead of his arraignment in New York City, Fox News Digital has learned. I've calibrated the E steps. The Starwave 60ED is super compact with a modular design. JPG . The Starwave 60ED becomes a fast astrograph at f/4. The AT70ED's focuser can handle a binoviewer much better. Canon 300mm f/4 L Prime - posted in Refractors : Hello members of CN, I am trying to understand the differences between doublets + FFs and Canon L series Primes or Zooms. The flattener produces wonderful flat fields as well as a 41mm image circle. Sharpstar 400F5. Pick up the phone, or drop us a line, and we will be happy to be of service. 6- Altair Starwave Ascent 102ED F/1122 - The planet killer outstanding high magnification performance. Astro-Tech 60ED Unboxed Equipment Discussions. Pending edit 1; Software 386 ;Page 1 of 3 - Astrotech ED series - 72mm or 80mm? - posted in Refractors : Im trying to decide between a 72mm and 80mm doublet Astrotech ED series. It has dual. The Hotech SCA flattener I have. But the William Optics costs $169 more. These have caught my eye: RVO Horizon 60ED ( £500 with flattener ) Altair 60 EDF ( £600 with flattener ) Both the RVO and Altair seem literally identical. ZWO EAF. 8X reducer/field flattener is designed for prime focus astrophotography. There's a batch of Apache sale coupons in the latest HF e-blast if anybody's interested. By attaching the dedicated 0. The WO Redcat is. Starwave ASCENT 60ED F6 Refractor. Both WO refractors show exquisite but the price is expensive too, Sky Rover 60ED APO and WO Z61 looks no different to me but it is on a attractive price, the last AT65Q is already discontinued, but reviews are good. 8, and after a lot of Googling, including a long look at Astro Bin, I went with the Sigma 180mm f2. Hello guys. 8x Reducer Flattener for Astrophotography. The Sharpstar 60ED is a versatile telescope that is perfect for viewing celestial objects such as the moon, planets, and stars. 8x Reducer. ” I have found a number of positive reviews about this modestly sized refractor. It can be ordered with various accessories. (I will be mounting the scope on a SLIK tripod and using either the Omegon Baby or DSV-M mount). 0mm) = 20. Reduced retraction. And since we're a family business, we plan on being. 25 pounds all together. You save. ASTRO-TECH AT72ED 72MM F/6 ED $379. 5mm Speed 35m/s 0. Astro-Tech . Features. View. Most Read Articles • Contact UsContact Us • Moon PhaseOk, so today I received my brand new Sky Rover 60ED purchased directly from the Aliexpress store. Astro-Physics 155mm f/9 EDT refractor; 10" f/6 Starsplitter Compact Dobsonian with Nova optics; 3. The EDL has better glass. A favorite. Edited by BFaucett, 27 November 2021 - 01:16 AM. This model fits the Astro Tech 60ED perfectly. arXiv:1810. I am using a simple Alt Az tripod, and can have this set up ready in two minutes. 265. 2 V. Buy telescopes and telescope accessories at Astronomics. Last updated on Jul 13, 2023 15:59:36 PDT View all revisions View all revisions. $75. 25" Accessories Astro-Tech . Thoughts on the Astro-Tech 80EDT? - posted in Beginning Deep Sky Imaging: Hi, Im looking to actually purchase my first personal astrophotography telescope (I have been borrowing one all this time). The F-5 will have a lot of spurious color - CA. 5- Astrotech AT 60ED - surprisingly powerful little scope. Maybe if they would come in stock. 95. When I researched the reviews for the scope I couldn't find a bad word said about it and. Sharpstar 400F5. Canon 100-400 IS I vs. VAT) Altair 70 EDQ-R F5 Quad APO Astrograph £1,150. The Astro-Tech reducer/flatteners thread into the focuser for a solid connection. The aluminum-framed case has three locking latches. Any here have/used this scope ? wanna get some opionions on it before securing it Related Topics Astrophotography Photography Art Hobbies comments sorted by Best Top New Controversial Q&A Add a Comment birdfinder_net •. The AT70ED is bringing ED optics to you at a fantastic price. The box came with no instructions, so I am unsure if I installed it correctly. Its apochromatic refractor design ensures that you get high-quality, clear images with minimal chromatic aberration. Vostok 1. 34mm and that is the thickness of the spacer (s) you require. 5 doublet with one FPL-53ED lens with multi-layer coatings one all surfaces and a 2" dual-speed 360 degree rotating rack and pinion focuser. Seems expensive. 8X Reducer for 60ED (ATRF60) AstroBin's equipment database is entirely maintained by the community. The Altair 60 EDF is our most compact telescope, and this a more refined version with an S-FPL53 doublet objective lens providing superior colour correction and a lighter more compact tube. Not as nice as the FeatherTouch. 9)^2, or 0. I was given the opportunity to test out and review the Apertura 60EDR & its dedicated field flattener from High Point Scientific! I knew that this telescope could be a phenomenal choice for those just diving into the hobby or even the seasoned astrophotographer. The field is very large and with a focal reducer such as the WO 0. Borg 60ED (#6260) 2" Eyepiece holder M (#7505) M57 to M57 ADII (#7458) M57 Helical Focuser S (#7757) Focal Reducer 0. The AT60ED shown with a TeleVue Panoptic 24mm eye piece, a TeleVue Everbright 1. The important perfomance updates come in the type of ED element combination and the type of foucser the AT125EDL is built around. Page 1 of 4 - Astro Tech's new Scopes coming soon! - posted in Refractors : I didnt see this on the refractor forum. ready for shipping in 24 h. Page 1 of 3 - Orion 80mm ED APO Refractor v. We've picked some of the best budget and high-end travel telescopes. 67 / 5 ) $ 770. William Optics z61 with field flattener. William Optics sold a fair number of them as well as a fair number of FPL-51 doublets. Altair 60ED, MG32 Guider and EQ3 Pro Synscan mount COMBO £968. If your budget is not set in stone then I’d suggest you take look the the 115EDT for 1259. Astro-Tech 70ED - posted in Refractors : Im thinking of getting the $299 AT70ED as my first foray into astrophotography. 8x Reducer / Adjustable Field Flattener for GT71, GT81, Z81 & Z103. 85 reducer/ flattener. ASTRO-TECH AT60ED 60MM F/6 FPL-53ED AND LANTHANUM DOUBLET I am selling my Astro-Tech 60ed + . 8x CCD Telecompressor for 92mm Stowaway and 105mm Traveler. - Astro-Tech AT72EDII f/6 - Explorer Scientific 80mm f/6 ED I don't want to spend too much budget on astronomy yet, i will not buy so expensive high end gear so i will keep myself in the intermediate or entry level if necessary, that is including the refractor as well, that budget i think it is in entry level to intermediate level, above $3000. The AT 60EDs are back in stock!Cloudy Nights. Page 1 of 4 - ASTRO-TECH AT80ED 3. VAT) Altair 70 EDQ-R F5 Quad APO Astrograph. The Astro-Tech AT60EDP Astrograph from Astronomics is a unique apochromatic ED Petzval refractor astrograph that has a four lens fully multicoated. The Astro-Tech 60ED is high on the list when it becomes available. FPL-51 or equivalent in the triplet. The new Astro-Tech AT102EDL is an extension of the beloved 60ED and 72EDII. 1. ready for shipping in 24 h. com and they have no idea. Page 1 A T80ED Thank you for choosing this Astro-Tech AT80ED high- performance ED refractor. My two larger, heavier, and more expensive 2" wide-field eyepieces haven't seen much use since I acquired the 28mm UWA over a year ago. I've been eyeing a longer focal length refractor with a bit more aperture than my AT72ED for awhile. Guidescope Suitability Calculator. 00 usd. I put in extra effort to collect as much data as possible to really. So don't be a stranger. Reviews. Altair MG32 mini guider. 0. This scope is the ultimate doublet refractor for those not wanting the weight and cool down of a triplet optical set. 00 usd. 00. It can't be used visually. 8 with the optional 0. Thank you @peter k! My goal is to pit it against my other two refractors in a 2 against 1 competition. Add to list. I am not clear how the more expensive triplet like the Sharpstar or Radian would be better, given the positive reviews of the lack of color shift in the AT telescope. The important performance updates come in the type of ED element combination and the type of focuser the AT102EDL is built around. 11/10/2023 03:01PM. Don't have an Astromart account? Click here to create one. This scope is for the person wanting a little more than what the 60ED and 72EDII can bring to the table. Astro-Tech . Camera lenses are not really suited for deep sky photography. The TS PhotoLine 60mm, f/6 FPL-53 apo arrives on the market amid some stiff competition from the suspiciously similar Astro-Tech AT60ED, the Altair 60EDF and the William Optics Zenithstar 61 apo (the Zenithstar’s 61mm, f/5. ZW Optical. The distance needed is 54. If you get a. The Ultimate Kit for the Apertura 60 mm Doublet RefractorIncludes a Full-Frame Field Flattener and 32 mm Guidescope. Kind of a MkII. Should be the same as the tsoptics 60ed and Apertura 60ed and Astro tech 60ed Reply Product code: XRING-60ED. ·. Pick up the phone, or drop us a line, and we will be happy to be of service. It suffers somewhat from field curvature and the owner’s aging, less-than-accommodating. We carry all brands and products, like Meade telescopes, Celestron telescopes, and more. I am. 5mm or 7mm DeLite for Astro-Tech AT60ED? - posted in Eyepieces: Im primarily a binocular observer (Canon IS 10x42 and 15x50). It combines solid build quality, good looks, and high-quality optics in one relatively inexpensive package. NEW V3 with X-Rings, Top. Typical of Astronomics it's priced $200 less than the StarField. I'd expect them to be similar. Focal Length: 360mm. You are better off with a short refractor like a Astro-Tech 60ED + 0. But the AT60 really isn't intended for planetary visual use. The FSQ-106ED is a 4. 67 (ex. 25" · Optolong Red 1. It has dual mounting rings with nylon-tipped collimation screws (three per ring). Astro Tech 60ED Telescope Review A miniature telescope with a specific task in its future, if I'm. 17 (ex. Stars are generally small with an even focused field across the QHY8. Chondrites (Carbonaceous) CI (Ivuna-like) CM (Mighei-like) CO (Ornans-like). I would expect the 70ED to be very similar in performance to the 80ED, in. Astro Tech refractors diameters? - posted in Refractors : Hi all, I would like to know about the outer diameter of the following AstroTech scopes for something i want to buy, please make sure it is a precise measurement as much as possible possible. 8 (Mini Borg) astrograph with 0. Zenithstar 61 II vs. Posted 10 May 2021 - 10:54 AM. AT60ED vs. 2. Ended up just ordering the 7” Astro-Tech dovetail which hopefully will arrive tomorrow. • dual-speed rotating 2" rack-and-pinion focuser with 10:1 ratio fine focusing. William Optics RedCat 51. Manufacturer. Astro-Tech 60ED vs. Astro-Tech College Tuition Sale; iOptron 20% Off Sale While Supplies Last; Meteorites. Although designed primarily for use with the new Astro-Tech AT60EDT triplet apo refractor, and priced at only $119. SWSA is very good at focal lengths below 200, for above, you need guiding to improve results. From my experience and knowledge I have learned the past year or two, I want a small refractor for my ZWO ASI1600mm. Most Read Articles • Contact UsContact Us • Moon PhaseThe Astro-Tech 127EDT, in comparison, is a relative monster. Brand new adjustable field flattener for the William Optics Zenithstar 61 OTA. This Astro-Tech AT60EDT ED triplet refractor has: • 60mm f/7 fully multicoated apochromatic ED triplet refractor optics. Altair Astro Limited is a. thanks!! much appreciated. Its 420mm f/7 ED air-spaced apochromatic. 33 (ex. Astro-Tech . 9 specification likely results from a lens cell with a slightly larger entrance pupil). → Beginning Deep Sky Imaging. Add New Equipment To Database. I have for sale a near new, recent vintage Astro-Tech AT60ED. The new Astro-Tech ATR8 2" 0. Click here to create one. To meet the textbook definition of an apochromat, you have to bring three widely separated color crossings to common focus with a residual secondary spectrum of 1/10000 the focal length. Posts: 711. I`ve had the brief opportunity to try it out with my Canon 450D tonight. 25" non. So, subtract the thickness of the t-ring from 9. In my case the strehl was 0. Due to a stock re-organisation, Altair is closed to visitors and we cannot take phone calls between Mon 25th and Fri 29th - we are still shipping goods but there will be a 1-2 day delay in shipping. This Astro-Tech AT60EDT ED triplet refractor has: • 60mm f/7 fully multicoated apochromatic ED triplet refractor optics. - posted in Experienced Deep Sky Imaging: Here is my second test of new x0. I own a TV-60, Astro Tech 60ED, and a TV-85. For visual I would go for at least 80mm, but if you have $$ 100mm ED/ APO is what you really want for visual. Feel free to give us a call if you have a question about your scope if it isn’t an Astro-Tech product. Star test results using an artificial star at a distance of 60 feet. The Astro-Tech ATRF60 0. The really odd part is that the SV60EDS and AT65EDQ look as if they came out of the same factory! Same focuser. Formal-Garden-7412 • 22 days ago. William Optics RedCat 51. I am selling a very nice sample of AT 60ED doublet APO. The EDL is an f/7 and the EDT is a triplet at f/6. Focuser: 2" Rack & Pinion with 10-to-1 Microfocus. Save Image. This is in superb condition having been used on only a few occasions. Astro-Tech 60ED Review So very dinky. . The AT70ED is a brand new addition to the Astro-Tech line up, whereas the 60ED and 72EDII have been out for a. Persian. 60mm Astro-Tech ED - posted in Refractors : My Astrotech AT72EDII shows identical diffraction rings inside and outside of focus when using an artificial star and a #58 green filter. Apertura 60EDR vs AT60ED - posted in Refractors : I am in the process of upgrading my imaging scope from a ST80 to a better small refractor. Cloudy Nights. This is a brand new 2019 item which is now in stock at Rother Valley Optics. Astro-Tech 60ED: not yet fully evaluated. Some dust on the lens front surface. 8x Reducer. 8x Reducer Field Flattener For the 60ED Optical Tubes. Astro-Tech 60ED Unboxed Equipment Discussions. But a 0. Speed 75m/s Extruder 215C Bed 60C Retraction 0. Astrotech 102mm f/7 doublet. IC405 - The Flaming Star nebula taken with the AT60ED. Buy telescopes and telescope accessories at Astronomics. I've never used it, but it looks like you need to use the Ocean OmniDriver to access the QEPro from LabVIEW. 8 lens for faster and wider field astronomical and terrestrial photography. For Sale. The optical tube measures 9. You can still get good images, but you would need to. The user manual says that it provides a library of LabVIEW wrapper around the OmniDriver . Calculate the resolution in arc seconds per pixel of a CCD with a particular telescope. 8x field flattener (no stock currently) + William Optics 48mm T-mount for Sony E-mount OR 2. $599. This Astro-Tech AT102ED refractor has: • 102mm f/7 fully multicoated doublet optics using FK-61 ED glass. 5mm and extension tubes will not be required. 5″ long with the dewshield retracted and 12. I've just upgraded to the Speed Spider Hot end and this is the quality of my prints now, anyone got any idea what's going on? I've calibrated the PID. Nevertheless, at focus, at 90x, using a 4mm "planetary" EP from Agena, I was able to get clean splits of Porrima, Algieba, and Castor. Ender 3 Pro V2 Direct Drive Speedy Spider Hot End 3DQF PLA. Portable Astrograph. • a rotating dual-speed 2. $60. 11/10/2023 06:06PM. The focuser can rotate as well to help you get the perfect framing. The Astro-Tech AT80ED has a retractable lens shade and comes in a locking aluminum-frame carrying case with room for accessories. Theres a couple of dust spots in the lens but doesn't affect imaging and some marks on the dovetail. Our calculator, at typical seeing of 2-4”, uses the Nyquist formula of 1/2 and the 1/3 to stop stars becoming square so the optimal range is between 0. We carry all brands and products, like Meade telescopes, Celestron telescopes, and more. 8x Reducer Field Flattener For the 72EDII Optical Tubes. Hard Case: The Astro-Tech AT130CA hard case is designed to hold the Astro-Tech AT130EDT 130mm triplet ED apo refractor. Brands / Companies 931 ; Cameras 3319 ; Sensors 465 ; Telescopes & lenses 3756 . It is measurably the best no-compromise portable photo-visual refractor Takahashi has ever built, and they've built a lot of very good scopes over the years. I have been considering the Astro-Tech AT60ED 60mm and the Apertura 60mm FPL-53 Doublet APO Refractor, I like the weight and the size of both for my. Page 1 of 2 - Yet another rebranded Sharpstar 60ED available now - posted in Refractors : I got an email from High Point today talking about a new Apertura 60mm f/6 FPL-53 doublet that looks exactly like the Sharpstar 60mm which is currently being sold with branding from Astro-Tech, Teleskop-Service, Altair Astro, and William Optics. Mounting to a Refractor Mounting Ring: Select the F002 E above. im quite enticed that i could use it for WIDE-field views (even wider than the St-80!), astrophotography, guiding, and even just day-to-day. However I have not been able to use it for astrophotography yet because the field flattner for it is on back order. CNers have asked about a donation box for Cloudy Nights over the years, so here you go. MPN. 8X, focal length drops to 320mm @ f4. Sky and Telescope reviewed this scope back in 2009, saying: “the Astro-Tech AT106 provides all the benefits of a first-class 4-inch apo but without the premium price. Its fully multi-coated optics provide bright, clear images that are free from distortion and color.