astro tech 60ed. Pocketprep for the exact reasons above. astro tech 60ed

 
 Pocketprep for the exact reasons aboveastro tech 60ed The Astro-Tech AT60ED might be just the compact high-quality grab-and-go or travel scope you have been searching for

Here are some Borg 60ED images resulting from a Google search :-Gary Honis-modified Canon XS(D1000), Hutech 60ED F3. $699 A little longer FL than the Astrotech and one less element of glass to offset the weight of a 2" diagonal. You are better off with a short refractor like a Astro-Tech 60ED + 0. 95. 25" diagonal has state-of-the-art 46-layer dielectric mirror coatings for a full 99% reflectivity. This is one of the many variants of the TS, Altair, AstroTech compact refractors available on the market, although a tad faster at F5. The price difference may be due to the fact that the astro-tech uses FCD-100 and FK-61 glass whereas the StarField uses FPL-53 glass. 25 pounds, this super compact telescope is a great tool to have whether it is your main. Astro-Tech . The flattener produces wonderful flat fields as well as a 41mm image circle. Astro-Tech recently re-released the 65EDQ and was available for immediate delivery. 25 diagonal, and a Manfroto camera tripod with pistol grip for easy aiming. Astro-Physics. 6x reducer in storage and the Borg are the Lego of. The EDL is an f/7 and the EDT is a triplet at f/6. Edited by Highburymark, 23 January 2023 - 03:38 PM. Astromelb. Skywatcher. 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 in Camera Angle Adjuster (Same mechanism as our EDT series)• 2” and 1. Solar system imagery courtesy: NASA/JPL. Omegon 66mm . William Optics Adjustable Field Flattener For Zenithstar 73 £209. On the front end, the retractable dew shield has an OD of 121mm, in case anyone is considering putting a filter there. Posted 23 May 2019 - 11:05 AM. Joined: 26 Jul 2020. IC405 - The Flaming Star nebula taken with the AT60ED. 00 £547. Henault-Brunet´ et al. Edited by Joe Bergeron, 12 January 2021 - 09:16 AM. Canon 100-400 IS I vs. It offers a the rack and pinion focuser and. It not only has great reviews, has FPL-53ED glass, and a clear price advantage. Stellarvue 80mm f/7 access. 5 set up with an efl of 950mm. Altair 60ED, MG32 Guider and EQ3 Pro Synscan mount COMBO £968. 00 £806. ASTRO-TECH . SWAS70ED-OTA, plus 0. . I put in extra effort to collect as much data as possible to really. The 72mm, f/6 primary lens is an air-spaced ED doublet using FPL-53 optics. This product is discontinued, for the new 5V EAF please click here. Hard Case: The Astro-Tech AT130CA hard case is designed to hold the Astro-Tech AT130EDT 130mm triplet ED apo refractor. 00. Equipment Key. The box came with no instructions, so I am unsure if I installed it correctly. The Starwave 60ED becomes a fast astrograph at f/4. 8X, focal length drops to 320mm @ f4. A super portable refractor telescope with FCD100 ED glass, suitable for astrophotography or visual use, day or night-time. It has dual mounting rings with nylon-tipped collimation screws (three per ring). $0. 85x (#7885) Tube Bands - Pair (#7060) The entire package is enclosed in an Astro-Tech case. The Astro Fi offers dazzling views of craters on the Moon, the rings of Saturn, the Great Red Spot on. Sharpstar 60ED Astronomical Telescope $366 / $436 with Flattener. Telescope Express TS Photoline 60mm f/6 is the same scope as the AT60ED, but a different color. Alan Hancox. Posts: 3,915; Joined: 08 Jul 2014; Posted 14 August 2019 - 08:09 AM. 1-800-422-7876 questions@astronomics. 00. You can image objects like the Heart nebula, Andromeda galaxy, Veil nebula and many more. . Focal lengths are 560. I highly recommend it. This Astrozap focusing cap with built-in Bahtinov focusing mask will fit most 80mm aperture fast focal ratio ED refractors, such as the Astro-Tech AT80EDT ED triplet apo, or any scope with an optical tube or lens shade measuring between approximately 101mm (4") and 110mm (4. For visual I would go for at least 80mm, but if you have $$ 100mm ED/ APO is what you really want for visual. This is one premium-quality diagonal that doesn't happen to be priced like one - and it's still a hot product for many observers. VAT) Sky-Watcher Esprit 100 ED PRO OTA £1,799. Brief Review: Astro Tech 80ED - posted in Refractors : Ive had this scope for a couple of weeks now and have used it on two occasions. I thought most t-rings were at 9. Astro-tech 60ED with FPL53 glass (like new condition) Astro-tech . Add New Equipment To Database. This is a great little portable package. 95. 20. Zenithstar 61 II vs. The sleeve between the flanges is what affords the full 360˚ rotation of the focuser. 8x reducer/flattener, both of which are backordered, or should I splurge for the twice as expensive William Optics Z61 plus their 0. Astro-Tech AT102ED 4" f/7 ED Refractor OTA. This page lists an incomplete selection of telescopes suitable for astrophotography. So, subtract the thickness of the t-ring from 9. 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. The AT60ED shown with a TeleVue Panoptic 24mm eye piece, a TeleVue Everbright 1. 92 (ex. View profile Send private message Share; Navigation contextTelescoape astronomice, microscoape si binocluri pentru profesionisti si incepatori. A UV/Ir filter should probably be used with all CMOS cameras and refractors, independent of their correction or quality. 25-inch adaptor. 00 £958. 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. Suitability Calculator. It is not too heavy and gives you a focal length of 288mm. 33 (ex. I like both the build and look of it, and the functionality of the rack and pinion focuser, but Im having a problem that Ive never experienced. 00. This l. VAT) Altair 70 EDQ-R F5 Quad APO Astrograph £1,150. When installing the bracket be very careful your new bolts don’t screw in too far or they will bottom out on the brass rail. Optically these should be identical to the original AT-102ED. When Thomas passed away, Astronomics, continued in their support of his family. Astro-Tech AT60ED . Do not use the screws provided with the shoe. Greetings to all! I have for sale a near new, recent vintage Astro-Tech AT60ED. Add to cart. 1-800-422-7876 questions@astronomics. View. William Optics z61 with field flattener. The distance needed is 54. 1. Guidescope Suitability Calculator. 5mm flange to sensor spacing). Page 1 of 5 - Astro Tech 80EDL or 80EDT? - posted in Refractors : Was wondering if anyone has experience between these two scopes. Views: 4822. 2 oz with the rings and dovetail, 5 lbs 4 oz without rings and dovetail. Having heard many good things. 50 mm - 60 mm High Profile Rings. We've helped hundreds of thousands of people pick the right telescopes or accessories since 1979. 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. (From the website). 5 version for a while). FocusKnobs. 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. You get a single ring with a. Focal Ratio: f/6. Precision Locking Focuser for Auto Guiding with Starwave 60ED Refractor £99. Here you will find the most modern cameras and accessories for astrophotography at top prices through direct import. Im looking for a 300mm vintage lens or more but. UPC. A compact guide scope with good quality optics to fit atop the 60ED with "set and forget" focuser. Here is an image I did about two years ago with my SV50 and the Astro-Tech field flattener under poor, red-zone, light-polluted skies. IMG_0602. This has been my quick view/travel scope for a couple of years and it is an amazing little scope, packing a big punch in a small package. I have been considering the Astro-Tech AT60ED 60mm and the Apertura 60mm FPL-53. Now with zwo1600mm camera. Hello guys. Brands / Companies 925 ; Cameras 3311 ; Sensors 465 ; Telescopes & lenses 3753 ; Mounts 613 ; Filters 2238 ; Accessories 1410 . Posts: 711. 5mm of backfocus, barely enough to reach focus with cooled and uncooled astro cameras. Cle. 7. Basically, what takes 4 hours of imaging with the ZS81 takes 3 hours with the AT80EDT if the same power of flattener. Vostok 1. Borg 60mm ED. No nicks or marks on any part of the telescope. The focuser can rotate as well to help you get the perfect framing. 8x Reducer. Buy telescopes and telescope accessories at Astronomics. ASTRO-TECH. 25" Adaptor, Carry Case, Tripod Base / Tube Ring. Choose an option. The focuser can rotate as well to help you get the perfect framing. It's FPL-53 or equivalent vs. Takahashi FOA 60Q *Like New* 11/10/2023 05:03PM. Brands / Companies 931 ; Cameras 3319 ; Sensors 465 ; Telescopes & lenses 3756 . The AT60EDP produces a 44mm image circle. Looking for a small refractor to take on vacations, and I have been considering these scopes, for easy one hour sessions during the week, etc. . 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. I believe many of the StellarVue 80 mm F/7 Eds used the same FK-61/FP-51 class glass as the Astro-tech 80 ED. Sharpstar 400F5. My other two refractors are APOs (a TV-101 and the Mini Borg 60ED). 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. Features. The Astro-Tech ATRF60 0. 5mm Speed 35m/s 0. We carry all brands and products, like Meade telescopes, Celestron telescopes, and more. 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. Hardtailparty is gonna put out a review for the Habit soon. Looks like a decent size scope I can hike with to remote locations and use with my Skyguider Pro with M4/3 and APS-C bodies, and its decently priced with its flat field corrector. ·. Set it up once and it will stay in focus forever! Altair GPCAM Guide Camera with an extremely sensitive GPCAM AR0130 Mono sensor connects directly to the MG32 Mini Guider. While this Astro-Tech #ATR8 0. This is my first impressions shortly after receiving the telescope. 76X imaging time of the ZS81. For Sale. I always converted my raw files to dng with the adobe dng converter, worked every time. The Starwave 60ED Imaging Refractor from Altair Astro offers a very portable refractor telescope with FCD100 ED glass, suitable for astrophotography as well as visual use, day or night-time. Therefore, you need to fill in (37. You can still get good images, but you would need to. 8X Reducer for 60ED (ATRF60) Accessory: 18: 121: Astro-Tech . Buy telescopes and telescope accessories at Astronomics. Decent 2" rack and pinion focuser with sufficient focus travel. An Astrozap focusing cap is a lightweight aluminum cap that fits over the front cell of your telescope. . By far the TV-60 is the most portable scope with great optics for birding and casual astronomy. $11. You get a 2" Rack and Pinion focuser with a microfine 11:1 fine-focusing ratio finished in our Aston Martin Grey trim. The aluminum-framed case has three locking latches. This Astro-Tech AT60EDP refractor astrograph has: • 60mm f/5 fully multicoated four-lens Petzval refractor • Two ED lens elements, FCD-100 and FK-61 • 44mm corrected image circle • amazing flat field astrophotographic capabilities • dual-speed 2. 8x CCD Telecompressor for 92mm Stowaway and 105mm Traveler. 00 £632. 8 for wide field shots with a focal length of 288mm giving you the flexibility of two focal lengths in one. 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. Add to list. Mounting to a Refractor Mounting Ring: Select the F002 E above. The thing that has most helped me practically is having a small refractor (F/6 60ED) and an artificial star that I can play around with indoors, under controlled conditions. For Sale. (To match the accessories for the Astro-Tech, you would have to spend about $145 for a dual speed focuser, $25 for tube rings and another $40 for the Dovetail bar, which in the end would come to $210 or $760 for the Orion ED80 vs $399 for the Astro-Tech). All of the telescopes in the chart above fall under the listed payload capacity of the mount. Astro-Tech . M51 and companion - at least as bright as my 10" dob. It can be ordered with various accessories. The EDT triplet is surprisingly 2 lbs lighter and comes with a case. 34mm and that is the thickness of the spacer (s) you require. Star test results using an artificial star at a distance. This scope is for the person wanting a little more than what the 60ED and 72EDII can bring to the table from an optical standpoint as well as a mechanical standpoint. Takahashi FOA 60Q *Like New* 11/10/2023 05:03PM. So we have the following in the “optical train”: Telescope > Reducer/Flattener (55mm spacing) > Stacked extension rings (total 20. Inverted monochrome Annotated Large size Full size User. 265. $369. This will be my step toward eventually purchasing an EQ6 R Pro later this year. And since we're a family business, we plan on being. For planets/ moon general viewing you could also look at the skywatcher 100ed F-9 or the TS-102ED F-11. . 8x Reducer Field Flattener For the 60ED Optical Tubes. 5). The AT 115 is coming into the U. 67” and 2”. Help us to grow by adding additional equipment to the database. Edited by BFaucett, 27 November 2021 - 01:16 AM. 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. Edit: I put an S on the end of scope in the title. 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. William Optics sold a fair number of them as well as a fair number of FPL-51 doublets. com is the leading portal for astronomy news, classified ads and telescope reviews. The Astro-Tech ATRF60 reducer/flattener threads on the 60ED focusers. We carry all brands and products, like Meade telescopes, Celestron telescopes, and more. 5mm, 21mm, 11mm spacers > ASI294. The AT70ED's focuser can handle a binoviewer much better. The new Astro-Tech ATR8 2" 0. NET assembly calls. I am selling my Astro-Tech 60ed + . arXiv:1810. Sears 60mm x 700mm "Discoverer" (Towa) achromat, circa 1968, vs. As soon as lifted the telescope free of the packaging and unwrapped it, I noticed an annoying rattle when moving the telescope around in my hand. Some dust on the lens front surface. The handle will help making set up much easier as you have a solid part to grab onto and not just the tube. It has dual. It is high profile to look over the tube rings. Feel free to make a contribution! Learn more. 265. The sleeve between the flanges is what affords the full 360˚ rotation of the focuser. 8x reducer / flattener for the 60ED. Mpaige10 likes this Back to top #36 Mpaige10 Mpaige10. I am selling a very nice sample of AT 60ED doublet APO. Pocketprep has over 1000 covering the 7th edition. barx1963. Kind of a MkII. 2 oz with the rings and dovetail, 5 lbs 4 oz without rings and dovetail. 90. Posted 20 August 2016 - 08:15 AM. ( 3. Item location:California nebula Astro-Tech 60ED test Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: California Nebula · NGC 1499 · The star ξPer. ‎ ‎ Telescopes Canada grew from our personal hobby to Canada's largest dealer for many manufacturers like Celestron, Sky-Watcher, ZWO, William Optics, iOptron, Optolong,. A super portable refractor telescope with FCD100 ED glass, suitable for astrophotography or visual use, day or night-time. I own a TV-60 and AT-60ED and they are great scopes. Optically it is quite good, pushed hard on difficult targets like Venus, a faint purple fringe is visible. Weighing in at just 3. So don't be a stranger. Any comments or suggestions are appreciated. 00 usd. 00 £315. → Refractors. Yeah, that's cutting the illumination circle a bit, but so what. Donation is not required by any means, so please enjoy your stay. Astro-Tech . SWAS70ED-OTA, plus Visual Bundle consisting of 17mm Eyepiece, Star Diagonal, RDF, Bracket / Stalk. The EDL series is an extension of the beloved 60ED and 72EDII. This evening a new scope arrived, an Astro Tech AT102ED. 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. 2 V. Artificial stars at a distance of about 60 feet. You can read this instruction for the full supported list and the connection methods: ZWO EAF Compatible Focuser List & Connecting Methods. The TV-60 is the ultimate travel scope and. Astro-Tech AT80EDT f/6 triplet. But the AT60 really isn't intended for planetary visual use. 8x Reducer Field Flattener For the 60ED Optical Tubes. Astro-tech AT60ED + Astro-tech 0. Re: AT70ED. price is 300 dollars shipped in CONTUS. As you add equipment to the view, the details will appear below. 800-422-7876. Keep in mind that the record for the tracker (afaik) is fullframe 600mm @ 600 seconds guided, which is stunningly good for such a small and portable system. Astro-Tech AT60ED Field Flattner - posted in Equipment (No astrophotography): Hello, 5 months ago I purchased an Astro-Tech AT60ED telescope. 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. VAT) Altair 70 EDQ-R F5 Quad APO Astrograph. An Astro-tech 102 EDL is close to your budgeted amount and loaded with premium glass and accurate Strehl. 265. 25" · Optolong H-Alpha 7nm 1. Length: 18" dewshield retracted, 21. 50 (ex. At Astronomics, we have that experience - a staff total of over 160 years of experience using and selling telescopes. The camera side of the reducer uses 48mm T-threads to connect to a T-ring and camera body. I was initially considering the Orion 80ED, but the focal length is a little longer than I would like and I dont like the focuser. 25" (286mm) deep including the feet that prevent the case from resting directly on the ground. The Astro-Tech AT150EDL is the largest apeture telescope in the EDL series. buy. Hopefully someone here has. Ender 3 Pro V2 Direct Drive Speedy Spider Hot End 3DQF PLA. Buyer take care of. Same fit and finish. 8 reducer. Discontinued Product ZWO EAF ( Electronic Automatic Focuser) $199. ASTRO-TECH AT60ED 60MM F/6 FPL-53ED AND LANTHANUM DOUBLET I am selling my Astro-Tech 60ed + . Add to Cart. The distance needed is 54. The scope weighs in at a light 3. → Equipment Discussions. Lukomatico just gave the Gear 60 a great review on YouTube. AT60ED vs. Sure there is another one also out there. Really nice and bright, especially (“esp. Note that the Orion is an. The AT70ED has a very good construction, specially the focuser: very solid, robust, precise, smooth and confortable to use. •. Mount Type: Two 1/4-20 threaded holes on foot with spacing between holes: 30mm. Although its been listed out of stock for a. 11/11/2023 05:45PM. Altair Astro Limited is a. Astro-Tech AT102ED Imaging Cameras ZWO ASI294MM Pro Mounts Sky-Watcher EQ6-R Pro Filters Optolong Blue 1. . In summary, we are using Nyquist as a starting point, with a slight tweak, because we are typically sampling very small, circular, stars. The AstroTech version has a nicer focuser, costs $100 less but uses FK 61 glass. 11/11/2023 09:35PM. com is the leading portal for astronomy news, classified ads and telescope reviews. You need to space an extra 9. Astro-Tech . Astro-Tech AT60ED Imaging Cameras ZWO ASI533MC Pro Mounts iOptron CEM70EC Filters Antlia ALP-T Dual Band 5nm 2" Accessories Astro-Tech . Nirvanaepic • 22 days ago. From my experience and knowledge I have learned the past year or two, I want a small refractor for my ZWO ASI1600mm. 5- Astrotech AT 60ED - surprisingly powerful little scope. Apertura 60mm APO Refractor Specifications. 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. Astro-Tech AT60ED Field Flattner - posted in Equipment (No astrophotography): Hello, 5 months ago I purchased an Astro-Tech AT60ED telescope. If you get a. Feel free to make a contribution! Learn more. . Both have FPL-53 glass. View. 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. Dust / Reflection Calculator. VAT) Altair 70ED Triplet APO Refractor Telescope From: £759. $139. William Optics RedCat 51 (Upgraded Version) + William Optics 48mm T-mount for Sony E-mount 2. 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. . 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. It is not too heavy and gives you a focal length of 288mm. 5. Bahtinov Focus Mask for Telescope - Astro Tech 60ED SLIDE ON. The SharpStar 60ED is a Doublet O'Hara ED FPL53 unit. Both great scopes when coupled with the William Optics adjustable flattener. . All the best!Looks like a rebrand of the WO ZS 61, also the Astro Tech 60ED, I think Altair have one also. The 72 is half the price for only 10% less aperture. Hello! I have an Astro-Tech 60ED 1x flattener for sale. The Astro-Tech ATRF60 reducer/flattener threads on the 60ED focusers. S. 8X Reducer for AT102EDL (AT102EDLRF)GetLeadsFast, LLC. $599. This finder shoe is designed to work on a variety of Astro-Tech telescopes. Hello everyone, The skies are finally clearing up and I had a chance to test out the Astro-Tech AT70ED. 95, 709mm FL, used Plossls of 32 to 15mm, and 66 degree ultra wide (similar to Orion Expanse) of 9 and 6 mm: M3 above Boo, nice fuzz ball at 20mm. So I've seen this topic come up a lot. Click on the pics for a larger image. These include the Explore Scientific Twilight I, the Vixen Porta II, and the Sky-Watcher AZ5. This is cocooned by an impressively long retractable dew tube that moves with silky smoothness. California nebula Astro-Tech 60ED test Equipment Imaging Telescopes Or Lenses Astro-Tech astrotech 60mm Imaging Cameras ZWO ASI1600MM COOL Mounts iOptron. Cheers! Bob F. The important performance updates come in the type of ED element combination and the type of focuser the AT102EDL is built around. I want to invest in my first astrophotography telescope which would be used with my iOptron. 8x Reducer Field Flattener For the 60ED Optical Tubes. But a 0. The home to all amateur astronomers & telescopes! Feel free to discuss anything astronomical here, from…. 66X focal reducer/flattener, 240sec, ASA 1600,. This is markedly higher reflectivity than the 88% of a conventional aluminum diagonal or the 96-97%. The AT70ED is bringing ED optics to you at a fantastic price. Astro-Tech Product #: AT60GS . 8 reducer for ED60. Matsumoto Company. (TS Photoline 60mm/60ED) which would produce a short and fast 260mm f/4. It’s worth noting that the. Astro-Tech 60ED: not yet fully evaluated, but well made and looks good so far. More focuser will be supported in the further. 60ED APO F/6 The new 60ED APO telescope from Sky Rover has excellent optics, a small and portable body, weighing less than two kilograms, so that you can travel to observe and photograph, no longer physical work, better enjoy the stars. Here are a few comments for those who may be considering purchasing one. 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. No liability assumed for product specifications. Ive always imaged with a telephoto lens and decided to move to a refractor. $139. Nevertheless, at focus, at 90x, using a 4mm "planetary" EP from Agena, I was able to get clean splits of Porrima, Algieba, and Castor. However, for 80mm refractors and smaller, my new favorite Grab-and-Go mount is this one, the Sky-Watcher. This is strictly for visual and Im trying to decide between the 2 of them. For Sale. I was hoping to do this first light video of my Astro-Tech AT60ED after I got my flattener/reducer, however they just haven't been in stock. Canon 100-400 IS I vs. Astromart. 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. 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. 5mm – 17.