11/10/2023 06:06PM. 5 to f/7 range that use a 2" focuser. 8x reducer/flattener, both of which are backordered, or should I splurge for the twice as expensive William Optics Z61 plus their 0. Pending edit 1; Mounts 621 ; Filters 2238 ; Accessories 1413 ; Software 386 ; Contributors 50 ;Page 1 of 2 - PF vs. Page 2 of 3 - Star Tests: 60mm Sears vs. $139. This Astro-Tech AT60EDT ED triplet refractor has: • 60mm f/7 fully multicoated apochromatic ED triplet refractor optics. in small batches and is often on back order, the SW 120 is easy to find. 25" diagonal has state-of-the-art 46-layer dielectric mirror coatings for a full 99% reflectivity. Pick up the phone, or drop us a line, and we will be happy to be of service. This scope is for the person wanting a little more than what the 60ED and 72EDII can bring to the table. I highly recommend it. Looks like it could be quite interesting, and at a very reasonable price: Wow. Canon 100-400 IS I vs. The Astro-Tech AT60ED APO Refractor that I recently purchased. View. The Astro-Tech 60ED 1x flattener easily threads on to the focuser of your AT60ED after your remove the standard compression ring eyepiece holder. Cheers! Bob F. The TV-60 is the ultimate travel scope and. Astro-Tech . I thought that I would do an unboxing of the newest addition to the family. 2 vs 1: Astro-Tech 102ED Initial Impressions and Casual Backyard Shoot Out - posted in Refractors : Yesterday I took delivery of a beautiful AT102ED, my first ED scope. 5mm or 7mm DeLite for Astro-Tech AT60ED? - posted in Eyepieces: Im primarily a binocular observer (Canon IS 10x42 and 15x50). I have a SharpStar 60ED F5. Nothing affecting the view. The Orion version uses FPL 53 glass but has a cheap focuser. 8 with the optional Altair Astro 0. The back focus is 55mm from the shoulder of the reducer to the. Its 420mm f/7 ED air-spaced apochromatic. 25" brass compression ring eyepiece holders. But the William Optics costs $169 more. This page lists an incomplete selection of telescopes suitable for astrophotography. 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. GA] 22 Nov 2018. 8X Reducer for 60ED (ATRF60) · Raspberry Pi Raspberry Pi 4 Software Adobe Photoshop · Aries Productions Astro Pixel Processor (APP) · Astroberry Project Astroberry Server ·. This Astro-Tech AT80ED refractor has: • split tube rings with detachable Vixen-style dovetail for installation on virtually any mount. This scope is the ultimate doublet refractor for those not wanting the weight and cool down of a triplet optical set. 50 mm - 60 mm High Profile Rings. Skywatcher. Do I need a reducer/flattener? - posted in Beginning Deep Sky Imaging: Hi there I just purchased an Astro Tech AT60ED 60MM F/6 FPL-53ED doublet to do Astrophotography with my ioptron Skyguider Pro. 25 diagonal, and a Manfroto camera tripod with pistol grip for easy aiming. Note that the Orion is an. So, subtract the thickness of the t-ring from 9. The AT60ED shown with a TeleVue Panoptic 24mm eye piece, a TeleVue Everbright 1. Posted 04 October 2023 - 09:27 PM. com is the leading portal for astronomy news, classified ads and telescope reviews. The MONARCH Fieldscope offers first-class optics and high contrast. There are three holes in the cap, similar to the circular holes in a Hartmann mask, that help you focus during imaging and visual use. Astro-Tech AT72EDII. 60mm Astro-Tech ED - posted in Refractors : Sears 60mm x 700mm Discoverer (Towa) achromat, circa 1968, vs. Theres two mounting screws on each side of the scope. 50 £82. Optics Type: ED FPL-53 Refractor. Both great scopes when coupled with the William Optics adjustable flattener. AstroDMx Capture with an SV605CC and an Altair Starwave 60ED doublet refractor with field-flattener and dew heater strip. 50 (ex. Astro-Physics. ExploreStars is really oriented for visual use - which it is good at - rather than astrophotography. (They have a first look video out already. Inside the cap is a wheel that can be rotated to either line up the Bahtinov. We carry all brands and products, like Meade telescopes, Celestron telescopes, and more. However they are very different by design. 7. Joined: 06 Jan 2005. com. Posted 23 May 2019 - 11:05 AM. (From the website). 1" F/7 ED REFRACTOR - posted in Refractors : Well just ordered me a ASTRO-TECH AT80ED 3. I have a TV 3-6 zoom so. Astro-Physics 155mm f/9 EDT refractor; 10" f/6 Starsplitter Compact Dobsonian with Nova optics; 3. 25" · Optolong Green 1. Takahashi FOA 60Q *Like New* 11/10/2023 05:03PM. Page 1 of 4 - Astro Tech's new Scopes coming soon! - posted in Refractors : I didnt see this on the refractor forum. Thanks. So, subtract the thickness of the t-ring from 9. So don't be a stranger. It is still lightweight, compact and portable but with much better performance, from star colors to planets and DSOs. 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. IMG_0602. An Astrozap focusing cap is a lightweight aluminum cap that fits over the front cell of your telescope. Images of space, taken by amateurs. Posted 23 May 2019 - 11:05 AM. Resolution Formula: ( Pixel Size / Telescope Focal Length ) X 206. Reduced retraction. Astro-Tech . But at this price range, it could not be better. The new Astro-Tech AT102EDL is an extension of the beloved 60ED and 72EDII. Altair Astro Limited is a UK Company I have been doing some research on small refractors and have come down to these 2 options: 1. ZWO EAF. As you add equipment to the view, the details will appear below. Sears 60mm x 700mm "Discoverer" (Towa) achromat, circa 1968, vs. 25" · Optolong Red 1. VAT) Altair 70ED Triplet APO Refractor Telescope From: £759. Some of you suggested the AT72EDII and it looks like a fantastic scope,. Any comments or suggestions are appreciated. Borg 60ED astrograph question. This is a great little portable package. Orion Versago II is another that would work fine. Cloudy Nights. The camera side of the reducer uses 48mm T-threads to connect to a T-ring and camera body. 800-422-7876. Add To Cart. 447mm @ f/5. Page 1 of 2 - Vintage Lenses for Deepsky - posted in Beginning Deep Sky Imaging: Hi there ! Id like to ask for opinion here. $75. Telescope Express TS Photoline 60mm f/6 is the same scope as the AT60ED, but a different color. When Thomas passed away, Astronomics, continued in their support of his family. Henault-Brunet´ et al. No nicks or marks on any part of the telescope. 0mm) = 20. It takes a telescope dealer with practical hands-on telescope experience. VAT) Out of stock. Page 1 of 2 - First refractor: Need advice - posted in Beginning Deep Sky Imaging: I have an iOptron Skyguider Pro coming in a few days. 33 (ex. While the Astro Tech 66 is no competition for the hight priced / higher quality true APO’s, you will get very pleasing images both visually and with CCD / DSLR cameras. The Altair Astro Starwave ASCENT 70 ED is a solid option for travel and wide-field astrophotography. View. Astro-Tech AT60ED Imaging Cameras ZWO ASI533MC Pro Mounts iOptron CEM70EC Filters Antlia ALP-T Dual Band 5nm 2" Accessories Astro-Tech . 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. 3D Printed. The price difference between the two not counting taxes or shipping is only about $10. Astronomics is a family business and Thomas Back was a part of the Astronomics extended family. The 2 inch focuser is extremely smooth and every screw has the non-mar clamping rings so. And I thought As. This instrument is designed as an astrograph. The TV-85 is a great scope for astronomy with it's increased light gathering but too big and heavy to carry. My Astro-Tech AT80 arrived on Wednesday, along with the Astro-Tech 2-inch Dielectric diagonal. 5" rack-and-pinion focuser with 10:1 ratio fine focusing. I'm VERY pleased with my AT115EDT. → Refractors. The distance needed is 54. Turned out the Astro-Tech 80ED. WO Zenithstar 61 APO $478. That means imaging with the AT80EDT requires (6 / 6. 67 = 2 / 3, 2 = 4 / 2). . Most Read Articles • Contact UsContact Us • Moon PhaseThe two silver allen bolts in the center of your photo. I record a 35sec AVI file (using Asi 290MC camera) and process in Autostakkert! I am blown away by the results. Star charts generated using Cartes du Ciel. - posted in Experienced Deep Sky Imaging: Here is my second test of new x0. 8x Reducer Field Flattener For the 72EDII Optical Tubes. Astro Tech 60ED Telescope Review A miniature telescope with a specific task in its future, if I'm. We carry all brands and products, like Meade telescopes, Celestron telescopes, and more. 80mm. Dual ED - posted in Eyepieces: Any opinions on the Astro-Tech Premium Flatfield (PF) eyepieces versus the Dual ED eyepieces available from Astronomics and Agena? It seems like one is better-corrected for field curvature but the other is better-corrected for chromatic aberration. A super portable refractor telescope with FCD100 ED glass, suitable for astrophotography or visual use, day or night-time. I note that the 60ED is also described as a quad but is actually a doublet. Solar system imagery courtesy: NASA/JPL. I thought most t-rings were at 9. 80mm. SWAS70ED-OTA, plus 0. 8 reducer. I have taken multiple photos of the moon, m3 and m51 and although my photos may lack technical merit, it has. It’s $949. Astro-Tech AT80EDT f/6 triplet. Cle. You get a 2" Rack and Pinion focuser with a microfine 11:1 fine-focusing ratio finished in our Aston Martin Grey trim. The scope weighs in at a light 3. $139. Now some tubes will need a little extra felt, like the Astro-Tech 60ED. Not all apo’s are created equal. Astro-Tech 60ED Review So very dinky. I've been eyeing a longer focal length refractor with a bit more aperture than my AT72ED for awhile. I thought most t-rings were at 9. • dual-speed 2" Rack and Pinion focuser with built in rotator. 134K subscribers in the telescopes community. 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. 00 £806. At`$550, you should be getting an FPL-53 doublet. Telescope N 130/900 Explorer EQ-2 with EQ-2-motor drive. Ended up just ordering the 7” Astro-Tech dovetail which hopefully will arrive tomorrow. 7. The new 80EDL is a doublet and F/7. 95. 17 (ex. 0mm) > Camera (17. 8, and after a lot of Googling, including a long look at Astro Bin, I went with the Sigma 180mm f2. We all have questions from time to time. Telescope N 150/750 Star Discovery P1 50i SynScan WiFi GoTo. 5" long with the dewshield retracted and 12. VAT) Altair 2" DualBand 6nm Sii Oiii CERTIFIED CMOS Filter & test report £199. California nebula Astro-Tech 60ED test Equipment Imaging Telescopes Or Lenses Astro-Tech astrotech 60mm Imaging Cameras ZWO ASI1600MM COOL Mounts iOptron. All of the telescopes in the chart above fall under the listed payload capacity of the mount. Hello! I have an Astro-Tech 60ED 1x flattener for sale. Matsumoto Company. Stellarvue 80mm f/7 access. William Optics sold a fair number of them as well as a fair number of FPL-51 doublets. In summary, we are using Nyquist as a starting point, with a slight tweak, because we are typically sampling very small, circular, stars. For Sale. I would get an Erect Image Diagonal for correct terrestrial viewing. 4KidsOneCamera • 3 yr. 25 pounds, this super compact telescope is a great tool to have whether it is your main. 2" aperture f/5 (530mm focal length) four-lens photo/visual system using two ED (Extra-low Dispersion) glass elements. Hello guys. 90. Nevertheless, at focus, at 90x, using a 4mm "planetary" EP from Agena, I was able to get clean splits of Porrima, Algieba, and Castor. Orion 2” 38mm superwide eyepiece. Quick view. . 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). If want a proper mount, I suggest to purchase a fully manual altazimuthal one (good choices for a 60-80mm APO could be Vixen Porta, Skywatcher AZ4, Explore Scientific Twilight I, Astro-Tech Voyager). Astro-Tech AT60ED Field Flattner - posted in Equipment (No astrophotography): Hello, 5 months ago I purchased an Astro-Tech AT60ED telescope. buy. 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. ) and is 125mm long. The Astro-Tech ATRF60 0. Manufacturer. Now with zwo1600mm camera. in stock Check stock level or request price match [value] £ 99. 25" non. 8X Reducer for 60ED (ATRF60) is an equipment item of class Accessory on AstroBin equipment database. Pocket prep for now. 8 for wide field shots with a focal length of 288mm giving you the flexibility of two focal lengths in one. Mechanically, the 2. Please contact the webmaster if you have a recommendation based on positive experience, if possible with a sample image 1280 x 720 pixels min). The Starwave 60ED becomes a fast astrograph at f/4. Omegon 66mm . ( 3. Feel free to give us a call if you have a question about your scope if it isn’t an Astro-Tech product. Most Read Articles • Contact UsContact Us • Moon PhaseThe Astro-Tech AT80EDT is a great triplet apochromatic refractor. ASTRO-TECH . So we have the following in the “optical train”: Telescope > Reducer/Flattener (55mm spacing) > Stacked extension rings (total 20. 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. Just my two cents. Astro-Tech 70ED - posted in Refractors : Im thinking of getting the $299 AT70ED as my first foray into astrophotography. 8X reducer/field flattener is designed for prime focus astrophotography. Astro-Tech. I have been very impressed with my modest optics thus far and have. Most Read Articles • Contact UsContact Us • Moon PhaseOk, so today I received my brand new Sky Rover 60ED purchased directly from the Aliexpress store. 5. 00 £62. The F-7 ED 102 is a good general use scope with low CA. The foam conversion is not pretty but it safely holds the entire set up in a easy to carry case. This is my plan to begin astrophotography on a regular. 1 lbs: 7. 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. It functions as a handle (This is fairly obvious from the name. You can still get good images, but you would need to. The EDL is an f/7 and the EDT is a triplet at f/6. Page 1 of 3 - Skywatcher Evoguide 50ED for Astrophotography? - posted in Refractors : Hey guys, im looking for a very versatile refractor and I want your opinions on the Skywatcher Evoguide 50ED. 8X Reducer for 60ED (ATRF60) is an equipment item of class Accessory on AstroBin equipment database. You can read this instruction for the full supported list and the connection methods: ZWO EAF Compatible Focuser List & Connecting Methods. Vostok 1. Astro-Tech 60ED vs. We have had various world class, in my opinion, opticians working for us over the years. Artificial stars at a. Astro-Tech AT102ED Imaging Cameras ZWO ASI294MM Pro Mounts Sky-Watcher EQ6-R Pro Filters Optolong Blue 1. Astro-Tech . The Astro-Tech ATRF60 0. 25" dewshield extended. ASTRO-TECH AT72ED 72MM F/6 ED $379. • dual-speed rotating 2" rack-and-pinion focuser with 10:1 ratio fine focusing. This uses the FB shoe and has a machined adapter that attaches it to the top of a 1" wide telescope mounting ring. You get a single ring with a. Page 1 of 2 - AT80EDT versus AT80EDL - posted in Refractors : Happy Holidays, all: Ive been kicking around the idea of getting a smaller 80mm refractor. The AT60EDP produces a 44mm image circle. The AT 60EDs are back in stock!Cloudy Nights. 00. FF130. The Astro-Tech 60ED is high on the list when it becomes available. The new Astro-Tech AT102EDL is an extension of the beloved 60ED and 72EDII. 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 f/5. The AstroTech version has a nicer focuser, costs $100 less but uses FK 61 glass. Although designed primarily for use with the new Astro-Tech AT60EDT triplet apo refractor, and priced at only $119. 67 (ex. Calculate the resolution in arc seconds per pixel of a CCD with a particular telescope. If you wanted this scope but with blue trim, congratulations. 00 £958. The 72 is half the price for only 10% less aperture. For the Astro-Tech Field Flattener the optimal spacing from field flattener to film plane: 57mm +/- 4mm and Canon is supposed to be 55. Astro-Tech AT102ED 4" f/7 ED Refractor OTA. It has dual. Astro-Tech uses two ED (Extra-low Dispersion glass) elements in the optical design of the AT60EDP. NET assembly calls. -- 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. VAT) Out of stock. Astro imaging bundle. The important performance updates come in the type of ED element combination and the type of focuser the AT102EDL is built around. The objective has just a few specks of dust which can probably be removed with a simple air-bulb. 265. 25" Adaptor, Carry Case, Tripod Base / Tube Ring. ready for shipping in 24 h. Shipping and handling. As a short refractor, it's meant for wide-field views and astrophotography. It can't be used visually. Astrophotography is better when you use several programs to control the mount, control the camera, perform active guiding, etc. Someone has had SharpStar painted on the side. 2. 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. 7X - even at $400 - makes a 294- or 533-size camera an affordable, awesome screaming-fast system when coupled with an Astro-Tech EDL or EDT. 8 (Mini Borg) astrograph with 0. A super portable refractor telescope with FCD100 ED glass, suitable for astrophotography or visual use, day or night-time. It measures 35" (889mm) long, 10. Star testing is so-so, by my estimate, about 1/4 wave SA under corrected, a little better than that if I use a prism diagonal. It’s worth noting that the. It not only has great reviews, has FPL-53ED glass, and a clear price advantage. Spencer-3d. 8x Reducer Field Flattener For the 60ED ? Clear Skies !! Back to top #6 Jaimo! Jaimo! I'm just stunned!. Please tune in for my 1st impressions of it. VAT) Altair 2 inch Magnetic Filter Holder - T2 - Version 2 £75. Altair 60ED, MG32 Guider and EQ3 Pro Synscan mount COMBO £968. Page 1 of 4 - Astro-Tech AT115EDT Review: The telescope that punches way above its price range - posted in Refractors : Hi all, Ive owned my Astro-Tech AT115EDT since December 2020, and Ive finally. Astro-Tech AT60ED 60mm f/6 FPL-53ED and Lanthanum Doublet. Astro Tech AT60ED Bahtinov Focus Mask -RED-AT60ED. I want to invest in my first astrophotography telescope which would be used with my iOptron. Performance is probably similar, but I'd love to see a comparison done. Buy telescopes and telescope accessories at Astronomics. I always converted my raw files to dng with the adobe dng converter, worked every time. ASTRO-TECH. Page 1 of 2 - AstroTech ED80 vs Orion ED 80 for AP - posted in Refractors : Ok these are the scopes in my price range. 11/11/2023 09:35PM. 50 (ex. Telescope Service is one of the leading astronomy Dealers in Europe. topic starter. Astro tech 66ed refractor mounting advice needed - posted in Refractors : HI All: After a long hiatus I am back into astronomy. There's a batch of Apache sale coupons in the latest HF e-blast if anybody's interested. Backfocus Confusion - AT60ED w/ field flattener - posted in Beginning Deep Sky Imaging: In the brief time ive been into imaging, my imaging train has been AT60ED > Apertura Adjustable Field Flattener @ 3mm > 16. 85x (#7885) Tube Bands - Pair (#7060) The entire package is enclosed in an Astro-Tech case. We carry all brands and products, like Meade telescopes, Celestron telescopes, and more. The Astro-Tech AT60ED might be just the compact high-quality grab-and-go or travel scope you have been searching for. VAT) Altair 70 EDQ-R F5 Quad APO Astrograph. SKU: N/A Category: Discontinued Product. Star charts generated using Cartes du Ciel. 5mm, 21mm, 11mm spacers > ASI294. Of the remainder, two are vintage Japanese refractors and the rest are various American scopes. 8lb apertura 60mm 3. They have the standard 102ED for like 560. Refractors. 67 / 5 ) $ 770. Views: 4822. 5" Questar Maksutov; 92mm Astro-Physics Stowaway refractor; 3" f/6. The Astro-Tech AT60EDT is a superb grab-and-go visual scope, a fine wide-field astrograph, and a daytime spotting scope. Examtopics covers just the 6th. Whether you are bird-watching or simply enjoying nature's beauty, the advanced apochromatic system with ED (extra-low dispersion) glass minimises colour fringing. The Starblast has a focal length of ~450mm vs 360mm for the AT60, so the Orion is capable of marginally higher magnification for lunar/planetary viewing. SWSA is very good at focal lengths below 200, for above, you need guiding to improve results. Astro-Tech 60ED. . 00 £632. I have for sale a near new, recent vintage Astro-Tech AT60ED. The images from its fully-multicoated ED (Extra-low Dispersion glass element) air-spaced doublet optics are virtually free of the annoying violet haloes of chromatic aberration (spurious color) that are typically seen around the Moon, planets, and bright stars in. Astro Tech, Feather Touch, Please be aware that not all modules from the brands above are supported. 4mm nozzle. . The Astro-Tech AT125EDL is an extension of the beloved 60ED and 72EDII. On the front end, the retractable dew shield has an OD of 121mm, in case anyone is considering putting a filter there. 00. Astro tech 60ed . ZWO new Astro Cameras, new accessories: Teleskop-Service is the partner of ZWO in Europe. ready for shipping in 24 h. Posted 10 May 2021 - 10:54 AM. Astro-tech AT60ED + Astro-tech 0. Mounts for Astro Tech AT60ED - posted in Refractors : Hi folks, I recently picked up an Astro Tech AT60ED as my first scope and noticed the mounts on each side of the scope for spot/guide scope and other peripherals. The main lesson seems to be, however, that if an apo doesn't show a textbook star test then it isn't necessarily a sign of a problem. 5 Jaegers refractor. Therefore, you need to fill in (37. Comes with the Astro-tech Camera Angle adjuster. The handle will help making set up much easier as you have a solid part to grab onto and not just the tube. Back to top #12 jcj380 jcj380. Small is essential on a Sky Adventurer, so you are going to need to consider the assorted 60ED's and a flattener. At the business end, the two-inch optical back consists of a millimetre-graduated lockable two-speed focuser and a 1. Astro-Tech Product #: AT60GS . Would I be better off with the Flat61R on the AT60ED or the Astro-Tech . At 80mm aperture, this is a fantastic option for those wanting to spend their nights imagin. These mount holes are 20mm apart, is this a standard size, or do I need something proprietary to mount something on the scope. thanks!! much appreciated. Length: 18" dewshield retracted, 21. More focuser will be supported in the further. This is a great little portable package. Posted 22 January 2022 - 08:20 PM. Its apochromatic refractor design ensures that you get high-quality, clear images with minimal chromatic aberration. 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. 67” and 2”. The EDL has better glass. Re: AT70ED. ” I have found a number of positive reviews about this modestly sized refractor. 00. It is best used for lower power wide viewing 30-50X. 00. The Astro-Tech reducer/flatteners thread into the focuser for a solid connection. So, do I: --wait 3 months for. I got this AT-60ED (FPL-53) a few weeks ago. Edited by Highburymark, 23 January 2023 - 03:38 PM. Feel free to make a contribution! Learn more. Page 35 of 37 - AT60ED: Something Small From Our Sponsors - posted in Refractors : Pete mentioned they are expecting stock this month. Looks like a sky rover 60ed rebranded, make sure it uses fpl53 glass and you should be good. The FSQ-106ED is a 4. in tandem with the MiniBorg 60ED for convenient RACI star hopping. This scope is for the person wanting a little more than what the 60ED and 72EDII can bring to the table. 8x reducer / flattener for the 60ED. In summary, we are using Nyquist as a starting point, with a slight tweak, because we are typically sampling very small, circular, stars. 11/11/2023 05:45PM. At Astronomics, we have that experience - a staff total of over 160 years of experience using and selling telescopes. 6M subscribers in the astrophotography community. This is cocooned by an impressively long retractable dew tube that moves with silky smoothness.