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90mm apo refractor Features: Replaceable 80 objective lens Replaceable 60 objective lens Triplet APO design Supporting full frame V reducer V flattener V extender V80 retractable lens hood Multifunctional handle bar Finder base Focuser knob “That’s a BIG Refractor, Paw-Paw!” The William Optics Megrez 90 APO Refractor Uncle Rod Mollise Yes, as our lovely model, Teresa, said during the photo shoot, the William Optics Megrez 90 is a big refractor. Menu. As you may know, I am a fan of doublet apo's for visual use for reasons of contrast, quick thermal stability and weight/balance. Write a Review. I could hardly wait to get my first view and wondered if the Megrez 80 II ED triplet APO would surprise meÉ The Megrez ED triplet APO delivers high contrast and razor-sharp images without any trace of color. 90mm can show you plenty, especially if you can get to a dark site. Skip to content. 90MM (3. Our pick for best value apochromatic (APO) refractor – for stunning image quality. Comparisons between the 90mm Mak and a 90mm Refractor often come up in these forums. Edited by kmparsons, 07 December 2024 - 03:38 PM. 80mm vs 90mm - posted in Refractors : Greetings to all. I purchased a Televue 85 an f7 refractor to complement my 12 Tele Vue 85 Joe Silverman I purchased a Tele Vue 85 f7 refractor to complement my 12. It offers a good mix of image quality and Best Budget Option — Orion Observer 90mm EQ Refractor Telescope Kit. Explore Scientific FirstLight 90mm f/5. This uncropped pic is with the TS90 and Apertura flattener for 90 apo. 6 and 90 mm aperture. It needs to be small and light enough to go comfortably on an alt-az mount (the SW100ED pro is, I assume, too big and awkward for that). In fact, in many ways, a high-quality apochromat is very much like a telephoto lens. 9 Portable Grab-and-Go Design for Lunar Planetary Observations. The following is a guide to some of the more commonly encountered and interesting examples, past and present. Earlier, I had the opportunity to compare Herschel wedge performance in 70, 80, and 90mm Achromatic Refractor: 90mm (3. Besid It boasts a quintuplet air-spaced APO Sharpstar 94mm f/5. 8x Reducing Flattener is an optional accessory that optimizes the Apertura 90mm Triplet APO Refractor for astrophotography. 99 - Original price $ 1,099. Note that this refractor scope does not come with a TS-Optics CF-APO 80 mm f/6 FPL55 Triplet APO Refraktor mit Zertifikat. 6), so the Askar Page 3 Megrez 90 APO Refractor Specifications Aperture 90mm Focal Ratio F / 6. 16. 6), so Askar FRA500 can better fit into the scenarios of deep-sky imaging than Askar FRA400. At 90mm you’ve passed those cute li’l Large Binoculars (56mm-90mm) Giant Binoculars (100mm & Larger) Solar Binoculars; Monoculars; Mounts & Accessories; All Binoculars; Clearance. This telescope is as light and portable as an 80mm telescope, yet it delivers 90mm of stunning full apochromatic performance. Öffnung 80 mm Brennweite 480 mm / Öffnungsverhältnis f/6 Erstklassige Farbkorrektur durch FPL55 The Orion EON 90mm ED Triplet Apochromatic Carbon Fiber Refractor is the newest in the company’s line popular EON “apo” refractors. 5” precision rack and pinion focuser. 0 Limiting Magnitude Retractable Lens Shade 360° Rotating All StellaMira triplet telescopes are QC-checked in the UK to ensure they achieve their full potential. Marketplace . Jon Sales. Im looking for a 500mm~ focal length telescope, and I would love to hear some suggestion about The Sky 90 debuted in 2000, and employs a widely-spaced doublet, the first (and to my knowledge, the only) Takahashi refractor to use this arrangement. Self-flattening design The Vixen is fine on planets, but I prefer the refractor on the planets. 5") F/900 REFRACTOR TELESCOPE . Our #: ZZT-ZZWO-AM90B. Buying something like 100mm scope, either William Optics RedCat 91 WIFD - posted in Refractors : The William Optics Cat 91 WIFD telescope has an amazingly flat field, as shown in the attached spot diagrams. 50 kg: Users : 29: Images : 227: Most often used with : Sky-Watcher EQ6-R Pro . This fast refractor for lunar and solar system observation and demanding astrophotography applications. 8 Refractor by Clive Gibbons (gibbonsc@mcmaster. Stellarvue wanted to make sure their instrument was Megrez 90 APO Refractor Specifications F / 6. The biggest difference in handling is length. In the lens there are 2 ED glasses for a good correction of chromatic aberration. I hope to place it on a Celestron AVX mount, and can even buy nice diagonals and eyepieces without selling any of my kids (dont Page 1 of 2 - Ideal Refractor for Use with a Herschel Wedge - posted in Solar Observing and Imaging: Since this past summer, I have been using a classic 90mm f/11 Meade Series 390 achromat refractor with a 1. The color and contrast on the planets, open clusters, and doubles is remarkable to my eyes. 5 Refractor OTA for Adults Beginners, Telescope for Adults & Beginner Astronomers, The crisp view offered by a high-quality apo refractor is truly a wonder to behold and share. 99 Original price. Apertura 90mm Triplet Refractor is an equipment item of class Telescope or lens on AstroBin equipment database. More : Page 3 Megrez 90 APO Refractor Specifications Aperture 90mm Focal Ratio F / 6. If you’re Here in this “Best Apochromatic Refractor Telescope” article we’ve rounded up 9 of the top APO refractors including triplet APOs of various specifications, and budget. 9 Focal Length 621 mm Objective Type Doublet FPL-53 Air Spaced Resolving Power 1. Trusted advice since 1979 Excellent 4. I currently have only one Our top pick of best refractor telescope for astrophotography is the Sky Watcher EvoStar 100 APO Doublet Refractor. FF130 APO is a quadruplet with two ED glasses which offers excellent control of chromatic and other aberrations. At least the Stellarvue tricks it into always being yellow on the limb instead of purple. The large 90mm aperture catches as much light as possible, making visible some of the faintest objects in the night sky! This is particularly so for deep-sky imaging, where apochromatic refractors have an even greater share. The SVX102T is the aluminum tube version of our This is our latest 90mm apo triplet figured in our shop here in Auburn. 9 FD APO Refractor. Mfg #: A-M90-W. FF130 APO supports medium-format cameras, such as ASI461, which gives you a larger field of view. Review of William Optics FLT-98 Carbon Fibre APO Triplet Refractor Foreword First things first: Im in no way related to any telescope vendor, manufacturer whatsoever other than being a paying customer!! My name is Paul Gordo The Altair 150EDF is an all-rounder, combining pinpoint focus and natural colours with imaging capability Cloudy Nights LXD55 Vernonscope Brandon 94mm f/6. 5" dual speed rotatable R&P focuser is made to hold heavy imaging or visual equipment. 5 apochromatic triplet optics using an ED . 95 Strehl ratio and includes a test report. 8 down to f/4. Posted March 6, 2012. Megrez 90 APO Accessories Chart The L-bracket can be used as a finderscope holder when you prefer to use mounting rings. Objective lens： Quintuplet air-spaced APO (including two ED glasses) Image circle：55mm. With my Canon 40D I generally use total exposures between 3 and 5 hrs with 20 mins subs with satisfactory results. Steve Cox and 72Nova like this I did find a “shootout” telescope test by Nico Carver that includes the Apertura 90mm triplet. 9 APO is such a scope. Both seems to be rather new, and I couldn't find much results on any of them. Doublet vs Triplet vs Quadruplet vs Quintuplet 2. TS-Optics 90 mm f/5 Quintuplet Flatfield APO Refractor Telescope - with optical test The apochromatic 5-element refractor with 90 mm aperture and powerful f/5 is ideal for astrophotography with powerful cameras. 8 Doublet APO Refractor OTA & Case £322. Pros: As a true apochromatic refractor, a triplet can provide some of the best views and images of any telescope type. Aperture 90 mm - focal length 450 mm - focal ratio f/5 Air-spaced FPL53 triplet objective - no relevant chromatic aberration High-quality 2-element Page 1 of 2 - Askar FRA500 vs TS-Optics CF-APO 90mm vs [your suggestion] - posted in Refractors : Hello! I opened a similar thread in the Equipment forum recently, since refractor is what Ill probably end up getting Im opening this thread here as its more relevant. The apochromatic refractor with 90 mm aperture and 540 mm focal length offers The StellaMira 90mm f/6 ED Triplet refractor is designed for the discerning astrophotographer or astronomer, so it has a minimum 0. → 80mm - 90mm Refractors; So what’s the big deal about an APO refractor anyway? An APO refractor is considered by some to be the highest contrast, and best image quality of all telescope designs because it eliminates the false color associated with achromatic refractors by using more expensive glass and designs, and provides an Page 1 of 4 - New Lineup of 125mm Doublet APO Refractors - posted in Refractors : I have been looking around for a new refractor in the 5 range primarily for visual use. but the idea of starting with a refractor and focusing on nailing the nooks and crannies of the hobby seems better imo. 25" compression ring adapter, 2" adapter, 2" extension tube. 5" R&P Focuser with 1:10 This refractor is an ideal travelling telescope due to the retractable dew cap and a transport length of a good 400 mm. Sky-Watcher ProED 120mm Doublet APO Refractor Telescope; 19. 5 f5 T-Scope truss Dob, and 6 f12 Intes Mak Deluxe. I was considering : Explore Scientific ED APO 102mm F/7 Bresser Maksutov Cassegrain 152mm F/12. Its 100mm apochromatic objective lens employs the finest quality, extra-low dispersion glass with The AT 92, TS-Optics' new 90mm f/6 triplet using FPL-55, or their earlier Photoline 90mm f/6. FRA stands for refractor telescopes with integrated corrector element for a flat and corrected image field. The accessories are: Stellarvue's SFFX-1 Photographic Field Flattener, TP013A Losmandy-style rail, two cnc-machined aluminum risers. A big APO, anyway. Using ED Glass optics, and GÉAR series standard accessories with heavy duty rings, vixen style dovetail, and a handle designed to mount accessories. I like to refer to this prototype, which Alan still has, as . In short, I really fell in love with the refractor. Measuring only about 18" long with the focuser and dewshield retracted for storage and travel, the AT90 optically and mechanically fills the void left by the discontinued AT92, TMB-92, and 90mm f/5 Astro-Physics Stowaway (a legendary scope that sells for up to $6000 on the The Apertura 90mm Triplet APO Refractor is perfect for both astronomical observation and photography. I believe this one is a good alternative to the AT 92mm,especially for peoples from Europe. If you prefer doublets Borg's 90FL is a good option, though it is even more I bought my first telescope, a 3-inch refractor a few weeks ago. It's one of the later Megrez 90s, dating to 2011. The GÉAR 90 is shown in RED. There’s quite a lot of power and nuance in this affordable Description The Explore Scientific ED102 Essential Series Air-Spaced Triplet APO Refractor Telescope is a true apochromat refractor that reveals o View full details Original price $ 1,099. After 5 hrs (15 x 20 mins subs) I measured a limiting magnitude of about 19 with a DSLR operating at ambient A comprehensive review of the Altair 150EDF apochromatic doublet refractor, ideal for astronomy enthusiasts and astrophotographers. Advanced search Equipment Constellations . sku: SVX102T. Page 1 of 2 - Review and first light with the FRA500 90mm f/5. The Starfield ED90 f/6 Triplet APO will take your wide field imaging game to new levels. 99 - $ "TS 90mm f/5 Quintuplet Apo with full image field correction beyond full frame size format The 90 mm f/5 quintuplett has been developed for astrophotography with large, but also high-resolution sensors as used in modern astro cameras and system cameras. Refractor: apochromatic: Diameter : 90 mm: Focal length : 540 mm: Weight : 3. The accessories $2,295. This refractor is an ideal traveling telescope due to the retractable dew cap and a transport length of a good 400 Page 1 of 4 - High-quality 90mm ED/Apo doublet options - posted in Refractors : I guess all APO refractor lovers have experienced (or may at some time experience) this dilemma at some point: An 80mm APO is perfect for grab-and-go observing at a moments notice: it is light, easy to mount and cools fast. Buying another 90mm but not the same, something like a doublet 90mm with FPL-53 maybe. It will be used just for imaging (mono camera, eq6r mount) but I'm asking myself if I also could use this Page 3 of 4 - High-quality 90mm ED/Apo doublet options - posted in Refractors : I would have 2-3 recommendations from personal experience. Aperture:90 mm; Focal length:540 mm ; Focal ratio:f/6 Buy Starfield Gear Series 90mm Triplet APO Refractor (OTA Only) featuring 540mm Focal Length, f/6 Focal Ratio, Triplet Lens with FPL-53 ED Element, Internally Baffled Tube, Multicoated Optics, 2. High quality build and features . 4 Reviews. US$ 249. 99 US$ 209. 0 Limiting Magnitude Retractable Lens Shade 360° Rotating Camera-angle Page 4 Megrez 90 APO Accessories Chart The L-bracket can be used as a finderscope holder when you prefer The Astro-Tech AT90CFT F/6 Triplet Apo from Astronomics is a very compact, carbon fiber refractor designed to offer high performance on the go. The Sky-watcher EVOSTAR series are two-element, air-spaced, multi-coated objective achromatic refractors. However, the key is what accessories you have The color definition on this apo refractor is exceptional, created by Metallic High-Transmission Coatings. /apertura-90mm-fpl-53-triplet-apo-refractor-w-ff-and-guidescope-90apo. The objective of the 90 mm apo: The AT90CFT 90mm f/6 triplet apo is a very compact refractor for the serious observer and traveler. 99 $ 1,099. g. The carbon tube makes the Borg fluorite 90FL f3. 2. This Astro-Tech AT92 refractor has: • 92mm f/5. There must be a point where local seeing conditions, mount guiding accuracy and a whole host of other factors just negate the extra £4000 ($4000) that you could spend. 9 with ESATTO 3" one William Optics Megrez 90mm f/6. Astro-Physics is of course not available. 8" (70mm) Focal Length: 350mm; Gėar series 90mm f/6 Triplet APO. 2" dual-speed rotating rack and pinion focuser ultra-short 17. Post listing Sell Seek . 6x reducer where some streaking and CA is evident in the corners - but putting a 0. Id like to get the opinion of people who have experience with both 80mm and 90mm refractors. Using FPL53 (Ohara, Japan) optics, this telescope comes standard with heavy SVBONY SV550 APO Refractor Telescope Apochromatic Triplet 122mm F7 Telescope With Case Bag for Deep Sky Astrophotography. The objective of the 90 mm apo: The triplet lens with 90 mm aperture and 540 mm focal length fulfils the criteria of a full apo. Ive found it does much better than my excellent 80mm F6 triplet and so close to as good as my That is exactly one main reason i chose this scope to be my first APO, and i really hope as i said that it will be great performance as well. Fully multicoated triplet optics, with an ED lens This Astro-Tech AT90EDX refractor has: 90mm f/6 apochromatic triplet optics using an FCD-100 ED element guaranteed . The imaging version is currently $400 additional, and it includes $498 worth of accessories. 95 strehl ratio or higher optical set 3. 9 FL Flatfield APO Refractor This wonderful apochromatic refractor with fluorite optics offers an incredible f3. The ASKAR FRA500 Quintuplet refractor with 90mm aperture and f/5. Large Binoculars (56mm-90mm) Giant Binoculars (100mm & Larger) Solar Binoculars; Monoculars; Mounts & Accessories; All Binoculars; Clearance. 6 Achro Refractor Alt-Az Telescope. I am still thinking about two options for my dual imaging system: 1. Ease of use means I use it more as well. Type : Refractor: apochromatic: Diameter : 90 mm: Focal length : 540 mm: Weight : 4. 18. 5 I have a TS-Optics 72mm F6. Borg 90 mm f/3. Specification - Triplet Apo 90mm f/6. These items will The Apertura R-FLAT 0. It’s the only 90-millimeter apochromat made with a three-element objective, which offers a level of color correction not possible with two-element designs. Contiguous US Customers: All items we sell ship for free within the Contiguous US. Shipping will be via the cheapest shipping method which will vary depending The GÉAR 90 with 0. 0 apo refractor which I use for visual and EAA. My latest interest is this new lineup of 125mm Williams Optics Megrez 90mm f/6. Its spots are smaller than the Cat 71 and the Tak 106, and are just barely larger than the Airy disc, meaning that the Cat 91 has effectively diffraction-limited optics. Quadruplet air-spaced APO. Triplet, good for imaging and visual, and I presume aircraft cabin friendly - it's the perfect travel scope. Yes, it is a triplet and takes a little longer to acclimate than a doublet but it is so good and so small. Focal ratio：f/5. SVBONY MK90 Maksutov Cassegrain Telescope OTA 90mm f/13. 25") 1,699: Orion EON 90mm ED Triplet Carbon Fiber Apo Refractor: Triplet Refractor: 90mm (3. Key Features. Obviously the 90mm APO will win hands down for contrast, resolution and brightness. Best Budget Pick. Smaller targets such as planets and many galaxies are Tele Vue TV-85 85mm f/7 APO Doublet Refractor Telescope (Ivory, OTA Only) B&H # TETV85TI MFR # WXO-3372. He had some quibbles with the mounting rings because they The StarField Optics ED102 f/7 APO Doublet Refractor uses high end FPL-53 glass & a Lanthanum element to produce amazing results! The 2. For airline portability choose the 80, for all other purposes the 90mm. 6 Fluorite Doublet APO Refractor) Includes all the stock Tak items usually included with a Sky 90 OTA (objective & eyepiece dust covers, retractable dew shield, standard 1:1 focuser, 1. Orion AstroView 120ST Equatorial Refractor Telescope ; 20. 25 UO refractor being. Sky-Watcher ProED 120mm Doublet APO Refractor Page 1 of 3 - Best Quality Apo Refractor for the price - posted in Refractors : Hello all, Recently Ive been looking for a new refractor to replace the old ed80 Ive had for a while now. I have owned many scopes during my 41 years in this hobby, but I still find excitement in an excellent, well made APO refractor. All of these refractors are great for astrophotography of planets, stars, This is our latest 90mm apo triplet figured in our shop here in Auburn. 6 quintuplet The FRA 500 comes in an aluminium padded case double boxed The SV 90mm is a fine scope. 9 FD APO Refractor ; William Optics Megrez 90mm f/6. 25 Lunt Herschel wedge to observe the Sun in white light. US$ 1,982. It's interesting that the typical comparison is between [say] the C90 and a optically perfect (e. Even from a light polluted site like mine, I use my AT 92mm quite often and with very satisfying results. Choose Options Compare. The Stellarvue is also better than what I remember the Ranger and 80mm f/6. When looking for a 90mm APO, I found four options which are more or less the same specs and price. Browsing all these refractors on the market currently, many things come to mind when I want to buy one: 1. Back focus：158mm（from base of M48×0. Discuss this article in our forums Astro-Physics Stowaway This was my first encounter with the legendary 90mm Stowaway refractoror just about anyone’s, outside of Astro-Physics itself. 6 focal ratio, ideal for wide-field deep sky imaging Petzval design ensures flat field across big 55mm image circle, while two ED elements virtually eliminate chromatic 16. One lens element is made from FCD-100 extra low dispersion “ED” glass by Hoya (Japan), which This is our latest 90mm apo triplet figured in our shop here in Auburn. Top pick nominations Top picks Image of the day . 9 FD Apochromatic refractor, a doublet scope with top of the line FPL-53 glass in very good condition. The ASKAR FRA500 is a 5-element apo according to Petzval with 500 mm focal length, f/5. 3 mag ; Resolution:1. Quick view. CFF offers their 92mm oil-spaced triplet in F6 or F6. 05" 12. Even bright Borg 90 mm f/3. The SV90TBV fluorite triplet refractor from Stellarvue (from $1,995) sports several features that help set it apart from the multitude of scopes recently entering the market. 29" Weight tube alone: 9lbs ; Weight with tube rings, dovetail bar and The largest of the Apertura apochromatic (APO) refractor family, this APO sports a large 90 mm aperture to catch as much light as possible, making visible some of the faintest objects in the night sky. 5") 910mm (f/10. The images also have minimal aberrations. Views through a similar quality 90mm f/7 are better than a 80mm f/6. The Stellarvue SV85S short tube 85mm F6. Sky-Watcher EvoStar 80 APO Doublet Refractor; Best refractor telescopes for viewing planets and galaxies. 5" two speed rack and pinion focuser, with ball bearings, that is also fully rotatable rotation. Makes it 480mm . 6x reducer on any refractor is a big ask - it is bringing the native f/6. After 5 hrs (15 x 20 mins subs) I measured a limiting magnitude of about 19 with a DSLR operating at ambient Revelation 90mm Apo Refractor Facebook; Twitter; Youtube; Revelation 90mm Apo Refractor. The Moon, two days after first quarter, stood low in the southern sky. They are truly outstanding, high-performance, high-resolution instruments Skywatcher Evostar 72ED DS Pro F/5. teleskopertificate. Sky-Watcher ProED 100mm Doublet APO Refractor Telescope; 17. Here are some thoughts I have on each: Page 3 Megrez 90 APO Refractor Specifications Aperture 90mm Focal Ratio F / 6. The Stellarvue SVR 90T Raptor features a 90mm Apo Triplet lens with an optical design and accuracy combined with precise alignment ensuring true apochromatic performance. But I keep looking at them online anyway. ca) An Overview: The Brandon 94mm refractor is a telescope Ive been interested in sinc From memory, the Stellarvue is noticeably better than my 80mm f/11. 8x reducer has a larger field of view compared to the Esprit100. 00. Natively, it’s quite wide field, but I also have a StellaMira x0. I don't need another scope. $ 1,099. Ive only had simple scopes like the Meade Infinity series and The largest of the Apertura apochromatic (APO) refractor family, this APO sports a large 90 mm aperture to catch as much light as possible, making visible some of the faintest objects in the night sky. html Page 1 of 3 - Should I Upgrade My 90mm Refractor? - posted in Refractors : Should I upgrade my Stellarvue 90mm refractor to a larger one since Im not using it for astrophotography anymore? Or should I just use it and be happy with 90mm of wonder? dreaming of a 5 APO though. It produces amazing images that are bright, sharp, and true to color. All categories Cancel Stellarvue 90mm Triplet Refractor apo Telescope w/ Carbon Fiber Tube SVR90 RAPTOR packs powerful performance in a light-weight, highly durable package. 60mm image circle. Page 1 of 2 - Finally after long time, my first ever APO refractor, FPL-55 - posted in Refractors : Hey all, I had the budget to buy a large/big scope for visual and planetary imaging, i hold the hope for very long time and i saw an offer for one or good price, but when i tried to order it my card rejected it, i tried few times until i gave up and called them, they told me they no The 100mm APO refractor niche seems very well populated with quality scopes. A high-quality triplet or Petzval refractor is considered by some deep sky imagers to be the best telescope for deep sky astrophotography. The Sky-Watcher EvoStar 100mm APO is one of the best value apochromatic refractor telescopes. 5 ED Triplet Apo Refractor Telescope # 94EDPH Our website does not work well with the Brave browser with the Brave Shield turned on. 75 thread on the A four-inch APO can be both highly portable and capable, attributes larger and smaller refractors struggle to combine. SVX102T. A big apo gives great views, but you have to consider cost, mounting, and portability. 5 rating on Google Reviews Free Shipping On Orders Over $100. Recommended Posts. Aperture:90 mm; Focal length:540 mm ; Focal ratio:f/6 ; Objective: Multicoated APO triplet lens - FPL53; Limiting magnitude:12. The SVX102T is the aluminum tube version of our TS-Optics CF-APO 90mm f/6 is an equipment item of class Telescope or lens on AstroBin equipment database. 99-16%. 99 US$ 1,449. Buy DETAILS (1) This high-end Evostar-72ED The SV90TBV fluorite triplet refractor from Stellarvue (from $1,995) sports several features that help set it apart from the multitude of scopes recently entering the market. 8, the reducing A compact APO refractor is portable and lightweight, making it a smoother transition from the camera lenses you may be used to. https://www. 8x reducing flattener, ZWO ASI294mm mono camera, Astronomik narrowband Page 1 of 2 - A new 90mm triplet APO from Telescope Service - posted in Refractors : I am on market for a 90mm refractor that I intend to use mostly for visual. Home ; Forum . The scope comes with a foam-lined aluminum hard case for safe packing and transporting. What this means for the end-user is that he or she will benefit from a good deal of freedom with regard to the objects that can be viewed by using this telescope. 6), so the Askar For Sale: an excellent used Tak Sky 90II (90mm f/5. 9 Telescope Kids Kit: Dobsonian: 76 mm (3") 100: Orion FunScope 76mm Tabletop Dobsonian Reflector Telescope: Dobsonian: 76 mm (3") 80: Orion GiantView BT-100 Binocular With my Canon 40D I generally use total exposures between 3 and 5 hrs with 20 mins subs with satisfactory results. 6 triplet (not available from TS-Optics any more, but still in stock on other sellers' websites) might be better options, though they are more expensive than the Starfield. Cameras; Eyepieces; Optical Accessories; Page 1 of 2 - Orion AstroView 90EQ Thoughts? - posted in Refractors : Hey all! I’m pretty new to all this and got a 90mm, 910mm f/10 refractor for Christmas and I have been really enjoying the views. The fully multi-coated 90mm (3. 6 Quintuplet Astrograph APO Apochromatic Refractor Telescope 5-LENZ PETZVAL-LIKE DESIGN - TWO ED ELEMENTS - SUPERIOR 15-STEP QUALITY CONTROL - SUPERB VALUE AND QUALITY FROM SHARPSTAR! Compared to its siblings, the 500mm-focal-length apochromatic refractor has an aperture size of 90mm (f/5. Browse Marketplace . The second most successful telescope type – Schmidt-Cassegrains – are the most successful for planetary imaging, where the long focal length that is a key characteristic of these telescopes lends itself particularly well to the narrow framing of planetary objects. These are the sharpest 90 mm telescopes we have ever offered. Cats and Kittens, this is where the rubber meets the road, refractor-wise. 4 Celestron refractor. Not only is an APO refractor a perfect fit in terms of focal length (native magnification), but the images with your DSLR/Mirrorless or dedicated astronomy camera will be extremely sharp and well-corrected. 0 Limiting Magnitude Retractable Lens Shade 360° Rotating Camera-angle Page 4 Megrez 90 APO Accessories Chart The L-bracket can be used as a finderscope holder when you prefer The StellaMira 90mm f/6 ED Triplet refractor is designed for the discerning astrophotographer or astronomer, so it has a minimum 0. 1 in the Stellarvue 90mm Fluorite Triplet Refractor Telescope SV90T is a product of 3 years of design and engineering that Stellarvue Telescopes and Accessories spent on creating ultimate grab and go telescope. Attached Thumbnails. B&H # Apertura has designed the 90mm APO refractor with a large 2. Nov. ASKAR FRA500 f/5. It is a solid and substantial piece of hardware, weighing 8. 2023 Pelican Nebula (IC5070) photo by Mark Abbott using the Apertura 90mm Triplet, matching 0. I fully expect other scopes will come and go but the little 85 will remain. . It is, after all, an APO doublet Svbony sv48 90mm - posted in Beginning Deep Sky Imaging: Anybody know anything about this scope? I realize Apo is the way to go, but I value my marriage too much to pull the trigger on that right now. 6 quintuplet - posted in Refractors : First light with the FRA500 90mm f/5. Harnessing the internal optics Triplet Refractor: 85 mm (3. The stars are small and round with a central RMS radius of 2um. I'm no imager, but I use a TSFLAT2 on my 72ED and 90mm APO refractors to good effect. 6. APO) 90mm Refractor. The objective of the 90 mm apo: The triplet lens with 90 mm aperture and 540 mm focal length fulfils the criteria of a full This refractor is an ideal traveling telescope due to the retractable dew cap and a transport length of a good 400 mm. But sometimes it feels a little bit aperture-limited compared with The compact apo is only slightly larger than apos with 80 mm aperture, but offers a much better performance in the sky. It is amazing just how many are currently available. By shortening the 90mm scope’s native focal length to a faster f/4. With internal knife-edge baffles, a built-in camera rotator, EAF-style electronic focuser compatibility, and an internal filter Meade 80mm Series 5000 ED APO APO-Wars: The (Meade) Empire Strikes Back Just over a year ago, Mighty Meade made an announcement: they were preparing to release a new, low cost, triplet Page 1 of 3 - TS Triplet APO 90/600 optical quality - posted in Refractors : Does anybody have some experiences with this (rather new) APO? I found it on Telescope Service website: TLAPO906T Id like to know what is its optical quality and if it would be suitable for CCD imaging? Ill appreciate if somebody would be so kind to post here some images made with The SV90TBV fluorite triplet refractor from Stellarvue (from $1,995) sports several features that help set it apart from the multitude of scopes recently entering the market. 5" dual-speed rotating rack and pinion focuser • ultra-short 18" length for travel TS-Optics CF-APO 90 mm f/6 FPL55 Triplet APO Refractor with Certificate. Out of collimation a fast short focus refractor is just as bad and ugly as any fast apo Page 1 of 3 - Smallish ED or apo refractor for planets? - posted in Refractors : Im looking for a small (4 or less) ED or apo refractor for planetary observations. It has been a wonderful experience seeing the Moon, Jupiter, Saturn magnified and Andromeda, M33, M81 and much more for the first time. Cameras; Eyepieces; Optical Accessories; Sharpstar 61mm f/5. Fully multicoated triplet optics, with an ED lens equal to FPL-53, deliver high A refractor just has a thick objective lens at the front. 1) 3kg: £135 (/w Mount) Celestron 127SLT: Maksutov-Cassegrain Catadioptric: 127mm (5") It is by far the most expensive OTA in this test, but that is because I only have a very small APO refractor to pit it up against (e. Edited by Silent_Light, 06 October 2023 - 10:44 PM. Home Latest topics Subscribed topics . The Orion EON 90mm ED Triplet Apochromatic Carbon Fiber Refractor is the newest in the company’s line popular EON “apo” refractors. 25″ adapter 8×50 RA erect-image finderscope 2″ dielectric diagonal 20 mm and 5 SVBONY SV48P Telescope 90mm, Achromatic OTA for Adults Beginners, Focal Length 500mm, Dual Speed 2-inch Toothed Focuser, for Astrophotography with Pearl Cotton Lining Sky-Watcher Evolux 82ED Doublet Apo Refractor Stellarvue 90mm Raptor APO Triplet CF Refractor - posted in Refractors : Can anyone give me their impressions of this scope (be gentle, its my first time). Heres my question: How much does the extra 26% aperture really contribute to visible improvement? I realize this is somewhat open-ended, so heres my situation, and why I am asking. Less than 20 in length at its most compact (dew shield slid back; focuser completely in) - not necessarily the Optical Design: APO Refractor; Refractor Elements: 4 (Quad) Optical Coatings: Fully Multi-Coated; Aperture: 2. 6 reducer / field flattener to give me an even wider field of view. I Hi! I've just purchased a 90mm refractor, a TS-Optics CF-APO 90mm f6 FPL55 Triplet APO (540mm focal length). Der apochromatische Refraktor mit 80 mm Öffnung und 480 mm Brennweite bietet höchste optische und mechanische Leistung für Astrofotografie und Amateurastronomie . The FRA series is mainly used for astrophotography. Budget is $900 or thereabouts. 40 kg: Users : 10 Astro-Tech AT 90CFT Reviewed in Sky & Telescope - posted in Refractors : Alan Dyer liked the instrument in Sky & Telescope, November 2023, pages 66-69. And the f/7 Orion 10029 StarBlast 90mm Altazimuth Travel Refractor Telescope Last, but not least, an honorable mention should go to this Orion model as it has a 90mm aperture and a focal length of 660mm. A refractor just has a thick objective lens at the front. 75. L'APO de 90 mm est de couleur pure et The StellaMira 90mm ED triplet apochromatic refractor is a high-quality telescope for astronomy enthusiasts. Apochromatic refractors significantly reduce chromatic aberration, or false color, compared to standard achromatic refractor I have used a few scopes from the Tasco refractor, 4 inch reflector, 10 inch DOB, 5 inch refractor, 10 inch refractor and more recently Tele Vue 85. More Info . The 90 mm f/5. 8x reducing flattener, ZWO ASI294MM mono I’ve also been thinking about a 90mm-ish apo. Sale. While I have not used a Questar in quite a few years, I do recall that the one I used demonstrated a high level of optical perfection, likely in the same league as a 90mm apo refractor if TS-Optics CF-APO 90mm f/6 is an equipment item of class Telescope or lens on AstroBin equipment database. 05 06 In order to operate your Megrez 90 APO you will need the following minimum equipment: We recommend mounting using one mounting ring, securing the L-bracket to the dovetail Aperture size：90mm Focal length：500mm. Astro-Physics Stowaway APO Dec 21 2005 03:13 AM | Joe Bergeron in 80mm - 90mm Refractors. Meade Instruments Polaris 90mm Aperture Telescope Lovely looking scope - I considered it as well before realising that because I already have 80mm and 100mm refractors, perhaps a new 90mm refractor wasn't the most imaginative way forward. Even bright stars are shown Page 1 of 2 - 80mm APO or 90mm Mak - posted in Beginners Forum (No Astrophotography): Hi all, Long time lurker here; have enjoyed reading posts for years. 9 ED Triplet Sky Watcher Esprit 120mm ED Triplet Apo Refractor OTA . 5″) triplet lens assembly has a focal length of 540mm, for a f/6 focal ratio. 9 focal ratio and it has a very large 55 mm flat field to allow the use of cameras also equipped with very large sensors, even larger than full frame. 9 with ESATTO 3" one of the most compact and lightweight 90 Chaque TS-Optics CF-APO est livré avec un certificat de test et un numéro de série; Mallette de transport robuste, poignée de transport et barre en queue d'aronde inclus dans la livraison ; Correcteur 0,8x pour l'astrophotographie disponible - spécialement calculé pour ce télescope; Apochromat triplet TS CF-APO 90/600 mm FPL55. A Compared with its siblings, the 500mm-focal-length refractor has an aperture size of 90mm (f/5. Thought it is used, it comes with Feather Touch, and meets my price point. He compares an inexpensive SVBONY, two mid priced The Starfield EDT90 f/6 Triplet APO with FPL53 will take your wide field imaging game to new levels. Schmidt-Cassegrains’ thin front correctors cool themselves rapidly but do trap the heat radiating from the primary in the tube; however, cooldown can still usually be fairly quick. This refractor is an ideal travelling telescope due to the retractable dew cap and a transport length of a good 400 mm. I can't stand field curvature with ultrawide The objective of the 80 mm apo: The triplet lens with 80 mm aperture and 480 mm focal length fulfils the criteria of a full apo. Now I wish to get my second telescope. Their site says one available with maybe a 6-9 month wait? than typical Chinese refractor optics. Orion Observer 90mm Refractor Kit. This Astro-Tech AT90CFT refractor has: • 90mm f/6 apochromatic triplet optics using an FCD-100 ED element • 2. Only thing The real problem is, at $200, why get a 90mm short tube achromat that is questionable with plastic stuff, when for the same price you can get a 130mm apochromatic reflector (Z130, Heritage, etc), a real telescope, with good optics, and way more aperture. I'll tell you up front, I am delighted with this addition to my collection which includes a Televue NP101, C8 and 10" Dob. a 130/140mm APO that would start being competitive, would cost much more The only negative reports I've seen on this family of scopes reagading image quality has been for the 103 APO when specifically using the 0. I’ve made some upgrades and I really like what I’ve seen through this so far (Saturn, Jupiter and it’s moons, Mars, Mercury, Uranus, M42/43, the moon, etc). Now includes a Losmandy-style dovetail mounting bar, and the rotator has engravings showing angular position. ) SVBONY SV48P Telescope, 90mm Aperture F5. Around 90mm ED (or triplet) refractor, give or take a coupla mm; 2. Im not interested in a reflector or SCT. Our Price: $1,095. - Apertura 90mm - TS 90mm I already thought of buying a C6 and then having a hyperstar later on. If you are looking for the best fast focal ratio/compact APO refractor that Thomas Back and Roger Ceragioli could create, then look no further. 99-26%. Even at magnifications of 300x, the image is free of annoying chromatic aberrations. Thoughts? Patrick The StellaMira 90mm ED triplet apochromatic refractor is a high-quality telescope for astronomy enthusiasts. By Jon Sales March 6, 2012 in Discussions - Scopes / Whole setups. I recently bought an AT92. One lens element is made from FCD-100 extra low dispersion “ED” glass by Hoya (Japan), which I ended up looking at these 2 telescopes, the Askar FRA500 and the TS-Optics CF-APO 90mm. – Apochromatic triplet ED refractor optics: 3 Highlights 100 mm apochromatic Refractor with Schott BK-7 and FPL-53 ED glass 900 mm focal length (f/9) Dual-speed 2″ Crayford-type focuser with 1. A 90mm Apo Refractor with a suitable mount and tripod, even a compact Alt-azimuth mount on a Carbon Fiber tripod, is heavier and bulkier than a Questar. The TS offerings with the Made in Japan lenses are interesting but color me skeptical until Page 1 of 3 - 90mm-ish travelscope recommendations below $1000? - posted in Refractors : Im wondering what even is out there in the world that would meet the following criteria: 1. 5" length for The compact apo is only slightly larger than apos with 80 mm aperture, but offers a much better performance in the sky. 90mm Refractors; → I observed that the Tele Vue produced a smidgeon of color on the limb of the moon. Weighing in at 22 lbs, it is easy to load into a car for a weekend away. Measuring only about 18″ long with the focuser and dewshield retracted for storage and travel, it is a very convenient telescope for all situations. My past refractors had purple on the moon's limb. 6 apo folds up into a remarkably compact package - just over 14", well under airline carryon limits. If you’re looking to photograph the planets, a compact refractor is not for you. Explore . I cant tell you how many times Ive thought I found what I wanted only to find something different. 9 Aperture 90mm. 5") 1,900: Orion FunScope 76mm Tabletop Dobsonian f/3. Groups Remote Long Perng S500G-D 90mm APO > It’s ED APO with 2’’ focuser (rack and pinion) Long Perng S500M 90mm ED APO > I think it’s not ED APO, its Achromatic and 2’’ focuser (crayford) For the above two items, obviously the ED APO has a better performance and less chromatic aberration in theory. difhh lrx cxzep dpyd snayo bfxy cfmmc eykait hpf fiivpl