The only one that appears to be a higher aberration value is spherical aberration. - posted in Refractors : I’m trying to decide between a WO Star 71 II and GT71 for a lightweight travel scope for imaging with either a DSLR or cooled OSC camera. De nieuwe GT71 heeft een 3-element objectief met hoogwaardig FPL-53 extra laag dispersie glas dat het kleurenspectrum dichter naar elkaar toekomt en … The William Optics RedCat 51LX is an affordable, small, lightweight and fast apochromatic refactor for astrophotography. Optieken zoals de RedCat 51 zijn ideaal voor fotografen die zich toeleggen op de nachtelijke hemel, maar ook op het fotograferen van dieren. Just add William Optics' optional 1.25" erecting prism diagonal made specifically for this scope (sold separately) and your favorite eyepiece, and you’re ready for a rewarding night of sweeping the Milky Way or for a … Sold out. From wildlife to the night sky, this 51 mm refractor from William Optics is the perfect companion for the traveling photographer and astronomer. Designed to be the best, affordable, small, lightweight and fast Apochromatic refactor for astrophotography. Select Options. Zenithstar 61II APO. Regular price $ 5,998.00. I sent a fresh email about it and I'll post what the reply is once I get it. William Optics. Fluorostar. De prachtige William Optics Gran Turismo 71 APO is het nieuwste juweel van de apochromatische refractor wereld. William Optics knows how to design a great telescope for astrophotographers! Is the William Optics RedCat 51 worth buying? Initial Impressions Why A RedCat? You're ... 71 - 80 degrees 5 items; Telescope Mount Type. Redcat. Recommended Posts. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. William Optics RedCat 51 APO 250 mm, f/4.9 Petzval optisch ontwerp. William Optics. ThomasF1234 44 Posted April 26, 2020. From the William Optics Megrez to the ZenithStar series, you'll find perfect quality - right down to the … Price. William Optics Star71II or GT71? William Optics produces several models of focal reducers for their telescopes. Zenithstar. William Optics. 12 talking about this. William heeft vanaf het begin van deze telescoop in zijn achterhoofd gehouden dat er een draagbare, kleine, met de best mogelijke optiek en optische ontwerp, vooral snel en voor astrofotografie bruikbare telescoop te maken tegen een laag mogelijke prijs. ThomasF1234. I just got the Askar FRA400. The RedCat 51 / SpaceCat 51 also makes a superb little scope for visual use. What do you think about this scope? £49.00 Add to Basket. Some scopes, including the William Optics Star and RedCat series, do not require a focal reducer or field flattener for astrophotography. William Optics 10mm Eyepiece for RedCat HK$780.00 William Optics RedCat 51 (Upgraded Version) + FREE International Shipping HK$6,780.00 HK$6,580.00 Be the first to receive our members only promotions and new product releases Send them an email. ... the Redcat 71 seems on the way...-- hide signature --_____ William Optics RedCat 51 APO Apochromatic Quadruplet Refractor Astrograph Telescope - RED v1.5 ( 0 reviews ) The unique optical design includes the highest quality glass for the best possible colour correction and flat field. - posted in Refractors : Im looking at a few different telescopes, and trying to make some sense of the analysis numbers for each one. ... William Optics RedCat / SpaceCat Single Mounting Ring - Black. Sight unseen, I just knew it would be good. William Optics Star71 Imaging Refractor Highlights. William Optics GT71 vs ZS73, which one? William Optics Slide-Base 50mm Guiding Rings (adjustable) (1) Discontinued - WO Star 71 APO Refractor (A-WO71II) William Optics. WO RedCat Autofocuser The brand new William Optics RedCat telescope is an alternative to the widefield lens shooting with 250mm of focal length. With a 51mm aperture and 250mm focal length this is a fast scope coming in… A friendly group for owners of the William Optics Redcat/Spacecat/*cat to share info an images taken with this telescope. I noticed that analysis numbers for the Zenithstar 73 doublet were nearly all lower in the aberration list than the Gran Turismo 71 triplet. Optics Star 71 4 element refractor for several years, when the first tasters of info about a 'four eyed fifty one' RedCat hit the usual media I was quick to order. Sold out call for delivery. WO Star. Ooop! By ThomasF1234, April 26, 2020 in Discussions - Scopes / Whole setups. Beschrijving. The email you entered isn't valid. High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. I genuinely cannot think of a better first imaging scope. 71 mm f/4.9 refractor optical tube £39.00 Add to Basket. It went on to be a very popular telescope, especially among DSLR users. 4 weeks ago I've been after a short focal length refractor for wide field deep space imaging and I have been looking at so many scopes. With an aperture of 51mm, a focal length of 250mm and a fast f/4.9 focal ratio, it is lightweight and easy to transport! Vendor William Optics Regular price $823 Sale price save $-823 Unit price / per . In early 2019 William Optics released the first version of their RedCat 51 telescope. The Evoguide wins hands down here. William Optics CAT series (RedCat 51) Telescopes; ZenithStar Telescopes; Gran Turismo Telescopes; Fluorostar Telescopes; Guide Scopes; Binoviewer; Flatteners; Accessories; All of William Optics; Explore Scientific 68° SERIES EYEPIECE; 82° SERIES EYEPIECE; 92° SERIES EYEPIECE; 100° SERIES EYEPIECE; APO TRIPLET REFRACTORS; AR DOUBLET REFRACTORS I had been looking for some new optics for a little while, although I’ve had some excellent results using my Canon EF L 70-200mm f/2.8 it’s corner performance, even with a 4:3 sized sensor, is a little underwhelming. Items 1 - 24 of 221. Table 3 shows the properties of each focal reducer and summarizes which reducer works with which William Optics telescope. I use the William Optics Redcat 51 for the first time. William Optics; William Optics. Designed for astronomers looking for the ultimate astrophotography and CCD imaging instrument, the William Optics Star71 Imaging Refractor offers pinpoint stars at the extreme edge of a 45 mm imaging circle. View as Grid List. The Limited Edition RedCat 51 Upgrade f/4.9 APO 250 mm Telescope! I think I'll keep it. I reread the email I got back from them about a month ago and they said it would be available in Sept. RedCat 51 APO 250mm f/4.9. Met de Redcat 51 verkrijgt u niet alleen indrukwekkende optische prestaties, maar kunt u ook genieten van de duurzame en mooie afwerking van William Optics. Products [1] Sort by: Quick View. William Optics. The William Optics Zenithstar 61 is a doublet apochromatic refractor telescope that excels in deep-sky DSLR astrophotography. William Optics Cat Series Saddle Handle Bar: $ 71.00* Omegon Radiant Finder with fastener: $ 59.00* Starlight Instruments Fokussiermotor für William Optics Cat: $ 394.00* Omegon 3x Barlow lens, achromatic, 1.25" $ 39.90* Omegon 2'' - 1.25'' Twist-lock adapter: $ 49.90* Omegon Binocular head Binoviewer 1.25'' $ 199.00* Never before has such high quality engineering been combined with such superb optical quality and offered to the modern amateur astronomer at such prices. No Mount (OTA Only ... Telescope Series. GH5 Settings:Profile: HLGSharpening: -3 (Had to decrease the sharpening effect to avoid Moire Effect on the feather. $1,054.99. William Optics Star/ZS 71 Soft Carry Case. William Optics RedCat 51Where to Buy: http://bit.ly/2JSC7LWThis Petzval APO bridges the gap between a telescope and a prime telephoto lens. For a little more than ⅓ the price of the Redcat, the Evoguide 50ED looks like a real bargain, even when adding the cost of the much needed field flattener. Newsletter. William Optics ZS61 Soft Carry Case (1) £35.00 Add to Basket. William Optics Redcat 51 vs Zenithstar 73 Facebook; Twitter; Youtube; William Optics Redcat 51 vs Zenithstar 73. Share Followers 0. William Optics Star71 Imaging Refractor - Blue. Shop with OPT for the best deals! The Z61 is the most portable telescope ever made by William Optics, a company with a reputation for building beautiful astrophotography refractors.. William Optics Telescopes. The Star 71 is lighter and has a larger imaging circle (48mm v 44mm), a benefit if I decide in the future to go full frame. Standout Features One of my top recommendations for beginning astrophotography is to start with a small refractor, and the William Optics SpaceCat51 (and RedCat51) is everything you could want to get started. Star Forming; Members; 44 RedCat 51mm f/4.9 APO Ix. Gran Turismo. WooHoo! I want to see more results from this before i finalize my decision on this. Optically Unbeatable Triplet air-spaced objective (FPL-53) in adjustable CNC machined ultra-high precision lens cell. William Optics RedCat 51 v1.5 f/4.9 APO Petzval Refractor Apochromatic Telescope The William Optics Redcat Z51 (left) compared to the Sky-Watcher Evoguide 50ED (right). With the helical focuser, focusing can be quite time consuming process even with the Bahtinov mask (especially with narrowband filters). In September 2019, William Optics introduced a new version of the RedCat with a few small improvements including – a longer dovetail plate, a better-marked focusing ring, and the tilt-adjuster built into the telescope. The William Optics Gran Turismo 71 features unbeatable optics with an undeniably sharp image and excellent color correction. Having enjoyed my wonderful William . Page. We are proud to represent William Optics class-leading telescopes and accessories at The Widescreen Centre and to display them in our Cambridgeshire showroom. William Optics Telescopes William Optics designs and manufactures high-quality telescopes and telescope accessories at an affordable price. Get yours at OPT today!