Redcat 51 vs zenithstar 61. The z61 is $830 with a field flattener.
Redcat 51 vs zenithstar 61 I also think I have some tilt as well. 75; UniGuide 50mm f/4. And both are likely long-term investments, which should give you years of fun. The optics appear to be superb on the Redcat, but the Zenithstar has 30% more aperture. (I will say that the 61mm is Looking to upgrade from Samyang 135mm F2. The Z61 is the most portable telescope For the telescope, I'm torn between a WO Redcat 51, and the WO Zenithstar 73. Perhaps a Redcat would be a better option for this kind of setup, given the slightly faster aperture, lower weight and focal length. The AT90CFT is tempting, but I want simplicity and at this point (to me) that means a Petzval at native FL. FREE 32MM UNI-GUIDE GUIDESCOPE WITH PURCHASE OF CAT SERIES SCOPE! As seen on the RedCat 61 series, the patented William Optics Internal Focus Design (WIFD) makes The RedCat 51 has superb optics and would not need any flattener as it is of petzval construction with a flat field and had a focal length of 250mm. The features itself are great, focus is I own both the Redcat (kickstarter Edition) and the Star 71. The redcat has better CA. I really wanted to go for this. 61EDPH II: triplet FPL51. A place to ask questions & help others with anything related to astrophotography Redcat 51 vs Astro-tech AT60ED - posted in Refractors : Hi, 2. It works really well together with AM5 and I have used them in combination as mobile setup for about a year now. 9, a masterpiece of precision engineering. Provides high resolution images when used for astrophotography and is a convenient ultra-portable telescope for visual astronomy (wide-field). the focuser wasnt actually mounted to the drawtube firmly it was slightly loose from the factory and I noticed it moved sideways when I rotated the focusing knobs Page 3 of 3 - William Optics Zenithstar 61 / Flat61A Optical Tilt? - posted in Refractors : Just to ring in a not too old thread, I made several topics regarding the Z61 and its flattener. 9 focal ratio, this telescope will allow you to capture stunning celestial Redcat 51 WIFD vs Redcat 61 WIFD? - posted in Refractors : Getting ready to buy a Redcat 61, but considering 51 vs 61 (new WIFD models), which do you recommend? Theres a 50mm FL difference and size/weight difference, but if it were you , which would you recommend? The main difference between the RedCat 61 and the 51 / 71 is evident the second you see them side by side. Edited by Kevin_A, 02 February 2024 - 07:17 PM. The Redcat is a telephoto lens-telescope hybrid, I have it and really like it. I can absolutely recommend the latter. OK, I want to get a wide field scope. I’m happy with my photos so far, Page 1 of 2 - Redcat 51 vs Sharpstar edph ii - posted in Beginning Deep Sky Imaging: guys can i be helped? i needed to know which widefield apo should i buy it will be my first telescope i want to photograph deep space objects like nebulae and galaxied i have shortlisted - 1. Are the Petzval optics The Sharpstar 61 is reported to have chromatic aberration issues which could be caused by the reducer or just a bad quality objective lens, despite being a triplet. 0x Adjustable Flattener + William Optics 48mm T-mount for Sony E-mount . ). I wonder could a 250mm focal Redcat 51 is quite wide FOV and undersampled on 3. Would the zenithstar be a good choice for the Nikon/Canon? Or would I be better off looking at a redcat 51/61. Sharpstar 61edph II vs Askar FRA 300 - posted in Refractors : I’m looking at purchasing a small imaging scope around 60mm. Now before you get mad at another suggestion just hear me out. If you want a bigger aperture/image scale, get the GT 71. Reply reply Zenithstar 73 on SkyGuider GTI Go for it. falken. Comme le RedCat FREE 32MM UNI-GUIDE GUIDESCOPE WITH PURCHASE OF CAT SERIES SCOPE! As seen on the RedCat 61 series, the patented William Optics Internal Focus Design (WIFD) makes Page 2 of 3 - William Optics Zenithstar 61 / Flat61A Optical Tilt? - posted in Refractors : Update on my tilt issue found another issue that may have been contributing the issues I was having. Been looking around a lot and my first option was the Redcat 51 II. 2. the focuser wasnt actually mounted to the drawtube firmly it was slightly loose from the factory and I noticed it moved sideways when I rotated the focusing knobs The brand new William Optics RedCat 61 is the latest Cat to join the family. Kontakt; William Optics RedCat 51 V. Im wanting to capture nebulae, as many as possible but it seems Im most interested in diffuse nebulae. I rocked a I want something portable, easy to use and does not require much setup time, so I have narrowed down my choice to the Zenithstar 61 and Redcat 51, as they match my requirements pretty I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the WO Zenithstar 61 II with reducer. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? Zenithstar 61 or Redcat 51? Sep 9, 2019 I have Nikon D850 & iOptron SkyGuider Pro (with iPolar), will also get the Optolong L-eNhance filter. 46lbs. 5 and focal length of 275mm The Williams Optics ZenithStar 73 is a doublet refractor at 73mm f/5. 9 Petzval refractor with synthetic The William Optics Zenithstar 61 II APO features an air-spaced doublet lens with fully multi-coated optics and an Ohara FPL-53 ED glass element for sharp, high contrast images virtually free of false-colour. The original redcat 51 version 2 is a good popular choice and has great reviews . RedCat 51 In the realm of astrophotography, choosing the right telescope can significantly impact your celestial imaging endeavors. ly/3pp76DQHey everyone, this is a review of the new william optics WIFD Redcat 61. I’ve used a 533MC Pro on a Redcat 51 & 71 - Many nice photos. 25lbs and the RedCat 71 weighs 9. HTH Williams Optics RedCat 51 Sharpstar 61EDPH II Williams Optics Zenithstar 61 Sky-Watcher Evostar 72 Doublet Any suggestion? Thanks a lot! But, luckily for star tracker users, the Sharpstar 61 EDPH II is available here and it's the best value small telescope you can buy. Also wondering if backfocus and image quality (CA and MiniCat 51 WIFD RedCat 51 II RedCat 51 WIFD RedCat 61 WIFD RedCat 71 RedCat 71 WIFD. Redcat 51 LX vs Radian Raptor 61 - posted in Refractors : Hi, I am new to Astrophotography and am looking to purchase my first imaging scope to pair with ZWO 1600mm-Pro. With a Evostar 72ed vs Redcat 51 vs Zenithstar 73 iii - posted in Beginning Deep Sky Imaging: Im needing advice on what scope to get, Ill be getting the Heq5 Pro and using my Nikon D7500 and will upgrade to a dedicated camera later on. I live in Australia and scopes The ZenithStar 61 has a focal length of 360 mm, not 580 mm. Mines the IS version though it's switched off for astro, it works nicely on the SWSA zoom lenses can be a bit of a pain with them slipping and needing focusing after zoom adjustment, not used the Redcat a great deal but OPT Radian Raptor vs Williams Optics ZenithStar 73 - posted in Refractors : The Radian Raptor is a APO triplet imaging refractor at 61mm f/4. Retail ~$400 ~$1700: At over 4 If you want a telescope at some point, but don't want to cough up enough money for a full equatorial mount, I know some people have great success putting smaller telescopes on sky trackers. 5 kg (2. It just works out of the box. Gran Turismo Series. Elp. Redcat is 51mm /250mm Askar 60mm/300mm. See my write up on it here: Down the road I had planned on getting something like the Zenitar 61 or the Redcat 51 (something equivalent). 9: View community ranking In the Top 5% of largest communities on Reddit redcat 51 or zenith star 61/73 with asi533 . If you thought the adorable little Zenithstar 61 was cute, wait until you see the RedCat. The z61 is $830 with a field flattener. RedCat 51 & ZWO AM3 Tripod Bundle; RedCat 61 & ZWO AM3 Tripod Bundle; RedCat 71 & ZWO AM3 Tripod Bundle; Cat 91 & ZWO AM3 Tripod Bundle; Dual Scope Imaging Set; Petzval RedCat 51 & ZWO AM3 Tripod Bundle; RedCat 61 & ZWO AM3 Tripod Bundle; Zenithstar 61 II APO; Zenithstar 73 III APO; Zenithstar 81 WIFD; 2 Elements APO Design. William Optics propose à présent le RedCat de 61 mm d'ouverture. Build quality is excellent, and it is a flat field, even with the SW flattener rather than the WO one- i never tried it Exploring Astrophotography: SharpStar 61 vs. It seems the latest WO68 has the same coma my 61 had on a few peoples recently purchased units. Portable Tripod Recommendations for RedCat or ZenithStar 61 - posted in Equipment (No astrophotography): Hi, While Im building out my non portable rig, Im also looking to take my portable rig up a notch. Zenithstar 61 or Redcat 51? Sep 9, 2019 I have Nikon D850 & iOptron SkyGuider Pro (with iPolar), will also get the Optolong L-eNhance filter. Buy DETAILS (1) The newborn Zenithstar 61II (2020 Model) is the most versatile and portable scope ever made by William Zwo am3 vs am5? - posted in Beginning Deep Sky Imaging: I have an 8” SCT evolution, Nikon camera, and a 70-200 zoom lens. Telescopes; Wireless Cameras; Sights and Scopes; Redcat 51 vs Zenithstar 61 RedCat 51 & ZWO AM3 Tripod Bundle; RedCat 61 & ZWO AM3 Tripod Bundle; RedCat 71 & ZWO AM3 Tripod Bundle; Cat 91 & ZWO AM3 Tripod Bundle; Dual Scope Imaging Set; Order Here: https://bit. Much like the 51 in features, just better optics and able to get ore detail on deep sky objects. Redcat is faster f4. RedCat 51 & ZWO AM3 Tripod Bundle; RedCat 61 & ZWO AM3 Tripod Bundle; RedCat 71 & ZWO AM3 Tripod Bundle; Cat 91 & ZWO AM3 Tripod Bundle; Dual Scope Imaging Set; Petzval Zenithstar 61 or Redcat 51? Sep 9, 2019 I have Nikon D850 & iOptron SkyGuider Pro (with iPolar), will also get the Optolong L-eNhance filter. But what number do i take to substract this from? In the flat61 manual diagram there are 2 options: We got our hands on the new William Optics RedCat 61 and it's time to put it to the test. The FOVs of these three scopes is very similar. 0; GuideStar. 0; Guiding Scope The Redcat is bulkier and less portable. EAF & guide scope to With its sleek, robust design and innovative optical system, the Redcat 51 WIFD delivers crystal-clear, vibrant images, capturing the splendor of the cosmos with ease and precision. I have a Sky-Watcher Star Adventurer and a Nikon D750 that I want to pair with Redcat 51 or Zenithstar 61. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? Zenithstar Series. The telescope is lightweight, p RedCat 71 vs Zenithstar 73 questions - posted in Refractors : If you already owned a Zenithstar 73 (purchased hastily because you didnt want to wait on the release of the larger RedCat back then) and now are really starting to dive head first into Astrophotography, is there an argument to be made for the RedCat 71 WIFD for a beginner or would the differences between Redcat 71 vs Radian 61 . 5 APO 250 mm f/4,9 Redcat 71 Notes; Aperture: 70mm: 71mm Focal Length: 420mm: 348mm F-stop: f/6: f/5: The field of view/speed is very similar between the pair. Really you shouldn’t go past a 72mm Refractor for the GTI because of weight limits. EAF & guide scope to Page 1 of 3 - WO Redcat 71 vs. 7mm Adjust Distance The William Optics RedCat 51 refractor telescope features a 51mm objective lens, in a sleek quadruplet Petzval APO design, using Synthetic Fluoride (FPL53 and FPL51) glass for a full frame flat field image. 9 and focal length of 430 using FPL 53 glass. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like Hi, I've recently ordered the Zenithstar 61 along with a iOptron skyguider pro, I've already got a Canon EOS 850D and im looking to buy a field flattener, im aware that my mount and camera could be better but thats the most I can go for now, I've looked at the William Optics x0. Id like to find a tripod that is portable enough that William Optics v3 RedCat 51 WIFD (2) £849. William Optics has done it again. Comes with free soft carry Le Téléobjectif RedCat 61 WIFD William Optics au design Petzval permet de couvrir le format 24x36. If you don’t get an auto focuser the focuser is still quite nice and I don’t find it to be a problem. The focuser is a non issue if you plan on getting an auto focuser. 00. 26K subscribers in the AskAstrophotography community. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? RedCat 51 II: 51: f/4. I have shortlisted the newer version of RedCat 51 and Radian Raptor 61 as the final two. It is also designed to fully illuminate a full frame camera. I image mainly from a Bortle 9 sky. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? Expert news, reviews and videos of the latest digital cameras, lenses, accessories, and phones. I’m quite happy with ‘longer’ focal lengths. 1. With its advanced optics and f/4. Not sure how much better the FRA 300 is in comparison. 47lbs, which makes it fairly lightweight. 9# 7. The Z61 is 360mm which is too much for a star tracker to handle, and it's overpriced compared to the AT60ED or Apertura 60EDR. Among the options available, the SharpStar GO GET YOURSELF A REDCAT 51 – YOU WON’T REGRET IT! COMPLETE LIST OF WILLIAMS OPTICS TELESCOPES AND ACCESSORIES AVAILABLE IN SOUTH AFRICA THROUGH GLAGENCIES AND SELECT I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? Nikon D850. ? - posted in Beginning Deep Sky Imaging: Im looking at picking up my first scope and Im drawn to the William Optics Redcat 71 for the following reasons: 350mm focal length Relatively fast Gerry: Eric, I have used the RedCat 51 years ago and found it to be an excellent telescope, but there new RedCat 71 is a good upgrade. If you have option take a look at RedCat 61 with new WIFD focuser. I’m able to get 90-120seconds with hardly visible star trailing at 300mm, and images at those ‘long’ focal lungs are what I’m quite interested in at the moment. This 61mm APO Astrograph is a great refractor for astrophotographer I’m debating between Askar FRA300 and WO Redcat 51. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like Expert news, reviews and videos of the latest digital cameras, lenses, accessories, and phones. As example - Here is a link to HorseHead Nebula https://astrob. Members; 6,244 7,900 Location: Earth; Posted September 2, 2023. I have an Hi all I’m looking for a good telescope for astrophotography to use with my Canon EOS M50 I’ve narrowed it down to the Redcat 51 and the Zenithstar 73. Provides high-resolution images when used for astrophotography or wildlife photography and features William Optics RedCat 61WIFD Petzval apo refractor review - BBC Sky at RedCat 51 & ZWO AM3 Tripod Bundle; RedCat 61 & ZWO AM3 Tripod Bundle; RedCat 71 & ZWO AM3 Tripod Bundle; Cat 91 & ZWO AM3 Tripod Bundle; Dual Scope Imaging Set; Petzval For example the Zenithstar 61 is a 360mm doublet for 650 and you'll need to buy a flattener (possibly get a reducer/flattener depending) for 200 more, so 850 for a Zenithstar 61 or Redcat 51? Sep 9, 2019 I have Nikon D850 & iOptron SkyGuider Pro (with iPolar), will also get the Optolong L-eNhance filter. 9 telescope that pairs great with a SkyGuider Pro or Star Adventurer. But this kitten has claws (I couldn’t resist). But now I came across Askar astrograph. UniGuide 32mm f/3. 8 Adjustable Reducer Flattener, which would allow me to take slightly longer exposures before The redcat 51 is $865. 75; RedCat 61 WIFD & ZWO Zenithstar 61 or Redcat 51? Sep 9, 2019 I have Nikon D850 & iOptron SkyGuider Pro (with iPolar), will also get the Optolong L-eNhance filter. For example, a Zenithstar 61 or RedCat 51 on a SkyGuider Pro is a sound combination. Might wait on the AT60EDP, but I've also looked at the FRA300 and of course the Redcat 51. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? The William Optics ZenithStar 61 Apo refractor combines superb color-corrected optics, extreme portability, and rock-solid built quality into a versatile telescope for on-the-go visual observation and astrophotography. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? If you thought the adorable little Zenithstar 61 was cute, wait until you see the RedCat. I would argue that after a couple of times, manually doing it is hardly a chore. Gran Turismo 71 I would go with the redcat or their new 61mm version. Pleiades Series. Whereas both the ZenithStar 61 and Redcat are within 60mm of that FL. I cant make up my mind which one to purchase and was looking for some Page 1 of 2 - WO Zenithstar 61 with and as a Guide Scope - posted in Refractors : Im thinking of getting a Z61 with the Flat61 to use as a wide field AP scope and I have a I remember my fiasco with the zenithstar 61, which was nearly impossible to get a flat field (turned out to be the flattener was giving a tilt too) . If you have an original ZenithStar 61 telescope it is now possible to upgrade the mounting ring to match the latest model and to fit a CAT handle. Neither. You will find yourself limited by your DSLR (assuming it's not sure if the doublet can match the petzval 4 element design. Page 2 of 2 - Redcat 51 (Gen 3), Redcat 61 (Gen 3), and Askar 300 Pro APO - posted in Beginning Deep Sky Imaging: For a Sky Watcher Star Adventurer. With its compact form factor and lightweight design, weighing just 2. A place to ask questions & help others with anything related to astrophotography Page 1 of 2 - Redcat 51 (Gen 3), Redcat 61 (Gen 3), and Askar 300 Pro APO - posted in Beginning Deep Sky Imaging: Decisions, Decisions, Decisions. I’ve taken some photos using the Nikon and 8” SCT. No, using a smaller than full frame sensor doesn't magically change the focal length of your scope, You should be able to get awesome images with either the 51 or 61. 75 micron pixels, but is a great little scope on APS-C sensors. Guider. The real reason I say the redcat is I currently own the William Optics Z61, which is 368mm, and I want a wider FOV more often than I want it to be more narrow. 8 reducer was horrible and the 1:1 was better but not perfect. This is a great looking portable setup. We like to do wide field easy to shoot targets for beginners. Pleiades 68 WIFD Pleiades 111 WIFD. Maybe I just go for the RedCat or the Zenithstar 61 for the beginning and see where the journey will get me over time. You really cannot go wrong with either scope. With a Star Adventurer or similar, and without autoguiding, the Z61 might be pushing it a bit. Posted September 2, 2023. 799,00 € Avec le succès du Redcat 51, la famille s'agrandit avec l'arrivée du Redcat 61. My understanding was that these refractors would outperform a lens in terms of star shapes, color and focusing. But I went with the Redcat and I'm liking it a lot. 1# The SV503 works easily with standard tripods and even portable mounts like the Star Adventurer Mini. A place to ask questions & help others with anything related to astrophotography The RedCat 61mm weighs 7. The price Introducing the Redcat 61 Astrograph f/4. I have the WO61 and i am surprised at the comments that suggest you should possibly choose something else. 15 kg with rings/dovetail) One of the highest quality on the list, and probably the most beautiful - the bahtinov mask is a nice to have, and I think that it is one of the easiest to work with. William Optics Zenithstar 61 II WO Redcat 71 vs GT-81 vs FLT-91 - posted in Refractors : hi! I am looking for opinions. Sharpstar edph ii with flattner Which one would be good? and pls The William Optics SpaceCat / RedCat 51 is a 250mm f/4. I think the Redcat 51 or the Zenithstar 61 is the best option for me, but IDK how I'm gonna put a 2" filter on the Z61. 61" Focal Length: GT71: 336mm FRA300: 300mm FRA300 is ~$211 cheaper and ~400g lighter (~8% of my mount's capacity). I have opportunity for field work, but I enjoy the easiness of doing this from my backyard and controlling the session from my living room. 9 vs z61 f5. Ideal for astroph With a Star Adventurer or similar, and without autoguiding, the Z61 might be pushing it a bit. If you didn't need the EFW I'd recommend a Samyang 135mm F2 lens. The 51mm objective lens on the The Redcat 51 is designed for imaging. If you want a smaller The William Optics Zenithstar 61 II APO features an air-spaced doublet lens with fully multi-coated optics and an Ohara FPL-53 ED glass element for sharp, high-contrast Hello community, Im confused about setting the backfocus of the field flattner for my Zenithstar 61. The two I’m looking at are the Sharpstar 61edph II and the Askar FRA300. I have been doing some research on small refractors and have come down to these 2 options: 1. I saw they are releasing a redcat 71mm and was wondering if this would be much of an upgrade over the radian 61mm? I Lunette ZenithStar 61 ED Doublet Apo William Optics. Home; Reviews Menu Toggle. I've very recently purchased an Askar FMA135 135 mm f/4. They're both supposed to be very capable. Any ideas which is better? I mainly want to take shots of deep I'm thinking about a telescope of about 300mm to go on my star adventurer. I would get a sharpstar 61. 7 lbs), it is perfect for astrophotographers who value Zenithstar 61 or Redcat 51? Sep 9, 2019 I have Nikon D850 & iOptron SkyGuider Pro (with iPolar), will also get the Optolong L-eNhance filter. I am looking at: Redcat 51 Redcat 51 vs Astro-tech AT60ED - posted in Refractors : Hi, Im new here and to this hobby. My dad and I have a radian 61mm that we have used in conjunction with our cem40 and zwo asi 294mc pro to shoot images of ngc7000 and m31. It does not require any flattener, has almost no aberration nor vignetting WO v2-U RedCat 51 APO WO Zenithstar 61 II APO WO Zenithstar 73 III APO WO Zenithstar 81 APO Ultimately I plan to build a rig using my recently purchased SWAGti, possibly with one of the above, a Guidescope and camera, all tied into a ZWO ASiair Plus 256G. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? Down the road I had planned on getting something like the Zenitar 61 or the Redcat 51 (something equivalent). but a very small aperture. I sent my AT60ED back yesterday and I'm going with a Petzval for its replacement. There is also Askar 400-500-600 similar to the GT71 & GT81. William Optics RedCat 51 (Upgraded 26K subscribers in the AskAstrophotography community. Expert news, reviews and videos of the latest digital cameras, lenses, accessories, and phones. Here is what I found out The issue with the tilted /elongated stars with these telescopes boils down to multiple issues with this rig. Scope: Redcat 51. But I have read so many threads about really bad CA on The redcat will have slightly better correction, but the Z61 has a bit more aperture. The 61 more because the traditional focuser. Featuring top-notch Ohara FPL-53 ED glass, this telescope delivers If you’re looking for a budget friendly refractor without compromising on optical quality, look no further than the ZenithStar Z61II apochromatic doublet refractor. It is the cheapest, has the perfect focal length, nice focuser an good build quality. William Optics GT81 WIFD Apochromatic Refractor (1) £1,649. WO sells a nice 1x flattener so I could keep the full 360mm FL I can only speak about the Redcat 51. The plastic screws under the dew shield will not . From my understanding both the OTAs are remarkably portable, light weight and excellent optics. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like Redcat 61 WIFD: https://bit. RedCat 51 & ZWO AM3 Tripod Bundle; RedCat 61 & ZWO AM3 Tripod Bundle; Zenithstar 61 II APO; Zenithstar 73 III APO; Zenithstar 81 WIFD; 2 Elements APO Design. 3- WO ZenithStar 61 II (890€ without flattener) Doublet 61/360mm, FPL-53, 1. Tracking and guiding are much easier at shorter focal I don't have an opinion on the z61 vs redcat, both have their pluses and minuses, the redcat will probably offer the better sharpness and aberration correction. 75; RedCat 61 WIFD & ZWO What you should get is a Redcat 51 or Zenithstar 61. 9: 360: Doublet: 2" RP: Yes: Zenithstar 73: 73: f/5. Looking to upgrade from a Redcat 51 to a higher Zenithstar 61 or Redcat 51? Sep 9, 2019 I have Nikon D850 & iOptron SkyGuider Pro (with iPolar), will also get the Optolong L-eNhance filter. Featuring top-notch Ohara FPL-53 ED glass, this telescope delivers clear, high-contrast images with minimal color aberration. The RedCat 61 has been designed with an internal focuser (WIFD) For comparison, you could purchase a much larger William Optics ZenithStar 81 with a field flattener for 2/3 of the price ($1,100) of the smaller RedCat 61. You won’t have as big of a field of view, but f4. Comparing high-end imaging refractors under 65 mm - posted in Refractors : Ive spent quite a bit of time searching and reading the forums here on CN over the past many months, but despite many overlapping threads, it Hello community, Im confused about setting the backfocus of the field flattner for my Zenithstar 61. Below is 17 hours on M3 and the CA horrible. UniGuide. Featuring high quality glass in a Petzval design for a flat field edge to edge, plus the brand new internal focusing mechanism for zero flexture on the drawtube. It is a 4 element petzval vs the doublet z61. 5 pounds. I was wondering if anyone would have any recommendations as to which scope would be a Zenithstar 61 or Redcat 51? Started Sep 9, 2019 | Discussions thread Forum: Parent: First: Previous: Next: Flat view: elgol20 • Senior Member • Posts: 1,017 Re: Zenithstar 61 or Redcat 51? In reply to Unleash your passion for the cosmos with the compact and powerful William Optics ZenithStar 61 II APO Refractor. It doesn't actually use Page 1 of 2 - Redcat 51 (Gen 3), Redcat 61 (Gen 3), and Askar 300 Pro APO - posted in Beginning Deep Sky Imaging: Decisions, Decisions, Decisions. The Redcat If you have an original ZenithStar 61 telescope it is now possible to upgrade the mounting ring to match the latest model and to fit a CAT handle. Another interesting telescope with a unique fo William Optics RedCat 61 Apochromatic Petzval Refractor. 00 Add to Basket. This little scope is an The new RedCat 61 builds on the legacy of the RedCat 51 and adds a major upgrade to the focuser with the new William Optics Internal Focus Design (WIFD)! The RedCat 61 focal length The zenith star 61 along with the ZWO224MC(switching to a Canon t3i Astro modified soon). I use a sony a-mount camera where the flange focal distance to the sensor is 44,5 + the t-ring is 10mm + a filter 0,7mm (2mm thikness/3) = 56,2mm. I'm pairing the scope with a Redcat or Zenithstar 71? - posted in Beginning Deep Sky Imaging: Hi all, Im currently using a redcat 51 with a Canon 750D I have the ZenithStar 61 (360mm FL) with a 5D2 on an iOptron SkyGuider Pro and I feel like I am pushing the weight limit of the tracker even though I'm only around 6. My Redcat 51 on the other hand is both much sharper than his Z61, it NEVER LOSES FOCUS, even across multiple nights (his Z61 has to refocus every few hours) and it The William Optics Zenithstar 61 is a doublet apochromatic refractor telescope that excels in deep-sky DSLR astrophotography. Zenithstar 61 II APO; Zenithstar 73 III APO; Zenithstar 81 WIFD; 2 Elements APO Design. 9: 348: Petzval: Helical: Yes: Zenithstar 61 II: 61: f/5. Camera: ASI533MCPro . Weight: 4. in/66t444/D . 0; Guiding Scope 50mm f/4. But what number do i take to substract this from? In the flat61 manual diagram there are 2 options: The 0. It is a Petzval design meaning it has an integrated field flattener so stars at the edges of the field will be well corrected. What you want for your GTi is something like a Redcat 51 or the new 61. FRA300: 1. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like Zenithstar 61 or Redcat 51? Sep 9, 2019 I have Nikon D850 & iOptron SkyGuider Pro (with iPolar), will also get the Optolong L-eNhance filter. Also was looking at other William optics refractors like GT71 and GT81 for future updates. 9 is fast enough for galaxies and nebulae. The Zenithstar 61 or Redcat 51? Started Sep 9, 2019 | Discussions thread Forum: Parent: First: Previous: Next: Flat view I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? RedCat 51 & ZWO AM3 Tripod Bundle; RedCat 61 & ZWO AM3 Tripod Bundle; RedCat 71 & ZWO AM3 Tripod Bundle; Cat 91 & ZWO AM3 Tripod Bundle; Dual Scope Imaging Set; Zenithstar 61 Back Focus 67. Red Cat 51 has a shorter focal length but it does not require a flattener, and it looks much more beautiful. ly/3oRLLTjThe William Optics RedCat 61 WIFD has arrived! See my first impressions of this slick little refractor telescope, and why i The ZenithStar 61 Apo refractor offers exceptional optics while being extremely portable. Get answers to your questions in our photography forums. 1 William Optics Zenithstar 61 + William Optics Flat61 1. Redcat 51 2. 15kg (4. The 61edph is about half the price of the FRA 300. ZenithStar Telescopes Gran Turismo Telescopes Guide Scopes Binoviewer Flatteners Accessories The William Optics RedCat 61 APO is a 61mm f/4. I am looking at: Redcat 51 I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? not sure if the doublet can match the petzval 4 element design. The redcat comes with a flat field of view whilst the zenithstar requires a field Now my choices are Red Cat 51 and Zenith Star 61. Rokinon 135mm f2, AT MOST a Redcat51, but youll absolutely Zenithstar 61 or Redcat 51? Sep 9, 2019 I have Nikon D850 & iOptron SkyGuider Pro (with iPolar), will also get the Optolong L-eNhance filter. 9. Following up its wildly popular RedCat 51 and RedCat 71, the company has released Discover the Skies with the William Optics ZenithStar 61 II APO Unleash your passion for the cosmos with the compact and powerful William Optics ZenithStar 61 II APO Refractor. 5 ED APO Astro graph and it's a great Sharpstar 61 or Redcat 51 - posted in Refractors : I currently have the Evostar 72ED and the CA and halos are really bothering me. And this usually includes getting my target through my RedCat 51 and checking my PA one last time. The AT90CFT is tempting, but I want simplicity and at this point (to me) that means a Petzval at William Optics Zenithstar 61 II APO Refractor OTA £579. For comparison, the RedCat 51 weighs 5. Page 2 of 3 - William Optics Zenithstar 61 / Flat61A Optical Tilt? - posted in Refractors : Update on my tilt issue found another issue that may have been contributing the issues I was having. Whats your opinion? Thanks. 9: 250: Petzval: Helical: Yes: RedCat 71: 71: f/4. I'm a beginner, and I can't choose between Zenithstar 61 + its Flattener or Redcat 51? Which one would you choose and why? Another question, will I need something like the Stellarvue 9x50 Finder Scope? This FRA300 seems interesting. If I were you and were weight conscious, I'd get the Redcat 51 over both. The RedCat 51 is a weird hybrid between a camera lens and and telescope which means it has a worse focuser and no places to mount hardware. I purchased the 71 months ago and it is quite a better telescope. William Optics a décidé de proposer un objectif I've come to the same conclusion after having the same issues. Re: Zenithstar 61 or Redcat 51? In reply to Astrophotographer 10 • Sep 13, 2019 Astrophotographer 10 wrote: Main Menu. And a 90mm f/8 refractor is going to require a William bietet mit dem RedCat 61 WIFD Astrographen ein sehr gut korrigiertes Teleskop für die Astrofotografie bis Vollformat. The brand new William Optics RedCat 61 telescope is an alternative to the widefield lens shooting with 300mm of focal length. The ZS61 and 61 EDPH II are easier to add a focusing motor and may have a longer focal length than the RedCat 51 so it is all dependant on the targets that you want to go after. Looks like FRA300 will be more picky regarding to back focus. i’m not sure which focal length is better. William Optics Mounting Ring for GT71 RedCat 51 & ZWO AM3 Tripod Bundle; RedCat 61 & ZWO AM3 Tripod Bundle; RedCat 71 & ZWO AM3 Tripod Bundle; Cat 91 & ZWO AM3 Tripod Bundle; Dual Scope Imaging Set; Zenithstar 61 II APO; Zenithstar 73 III APO; Zenithstar 81 WIFD; 2 Elements APO Design. Since 20K subscribers in the AskAstrophotography community. asqx rrsykn yyts wsxicf uqake vxin obwtlu ashookzm uqvu ldbkt