I tested several eyepieces advertised as having 100 fields, all with focal lengths from 13mm to 15mm, a good sweet spot for any eyepiece on most telescopes, and encompassing the focal length of the original 13mm Nagler and Ethos models from Tele Vue. I doubt Vic Maris will reveal who his OEM is. Nice detail of the moon and the cloud bands on Jupiter. Very comfortable, bright and sharp. Guess I never answered the OP's real question here - favorite FOV, lol. Are these made by United Optical? . Very fast shipping and packaging. Top-ranked German Universities in Munich. I would target a 12mm-13mm for my first EP purchase. It performs well on faster telescopes, a key characteristic of Nagler and Ethos eyepieces. They're just too big and heavy and more of a novelty view for me, whereas my 82's are quite comfortable. I find the Televue better, but both the ES and UWA are very close. (1) it seems that for observer favorite FOV is defined by nature of human eye: 120-140 deg. And the included velvety storage bag is very nice. Have fun experimenting! The grades represent the following assessments of the examination performances: Talent Development, Scholarships and Awards, Verification of Study Periods for Pension Insurance, Mission Statement and Teaching Constitution, TUM Center for Digital Leadership Development, Digital Programs of Executive and Professional Education, Office of the Senior Executive Vice President, TUMonline TUMs campus management portal, Academic and Examination Regulations (FPSO), resolution of the Kultusministerkonferenz, 1.01.5 very good: excellent performance, 1.62.5 good: performance well above average, 2.63,5 satisfactory: average performance, 3.64.0 sufficient: performance meets the standards in spite of deficiencies, from 4.1 fail: performance does not meet the standards because of substantial deficiencies. I present them in order of increasing price. Now if you had a more expensive 30mm EP, that FOV will remain sharper to the edge. Night Sky Challenges and the Astronomical League. The ES is solidly made and comfortable to use despite its short 11mm eye relief (measured from the top of the eyecup), due to the recessed eye lens (the specs state 15.6mm). The A-T is darn close, but does give more magnification and FOV. The Explore 100 comes a very close second to Tele Vue in sharpness, with stars sharp across 90 percent of the field and still well contained at the edge. As the object, or area of an object, being viewed, often take up a very small area of the field of view. If the grading system of your university uses letter grades, you can assign a number to each letter grade. Unfortunately EP focal lengths are rarely exactly accurate and in the case of the axioms they were obviously paying homage to the original 23mm axiom and 24mm was close enough to call a 23. The A-T 28UWA/StellarVue 82 and APM 30UFF has already been mentioned in this thread. Heres a low-cost zoom eyepiece that actually works well. His website at www.amazingsky.com has galleries of his images, plus links to his product review blog posts, video tutorials, and ebooks on astrophotography. Don't have an Astromart account? The result is the equivalent to your grade in the German grading system, where 1.0 is the maximum grade and 4.0 the minimum passing grade. The failure rate, resolution, sharpness, and other subtle differences were there. HOW did the Stellarvue EPs work out???? I tested this set on f/6 apo refractors and f/5 to f/6 Newtonian reflectors, concentrating on comparing on-axis and off-axis sharpness. With a 10 inch Newtonian at an f5 focal ratio, the 50mm eyepiece you are considering will produce a 10mm exit pupil. #32 Times Higher Education Ranking. Of the lower-cost 82 models, this was a good choice overall for both optics and mechanics. With the eyecup folded down it can be used with eyeglasses, but only just. Edit: For clarification, I am referring to the apparent field of view of eyepieces, not the true field of view. If theres one premium eyepiece to buy, it will likely be in this focal length range. At a measured 13mm, eye relief seems a little tight, and 1.5mm less than specified, due to the eye lens being more deeply recessed than in the others. Please note that this tool is only intended to provide a first orientation and the results are in no way binding. Thanks for any input if anyone is still watching here. MSRP $350. Munich, by far the largest city in southern Germany, lies about 30 miles (50 km) north of the edge of the Alps and along the Isar River, which flows through the middle of the city. Stellarvue 8mm UWA Ultra Wide Angle 82 degree 1.25" Eyepiece - New. It sounds like at $65 a piece it would be hard to do any better. Click here to create one. 15mm Stellarvue is identical to the 14mm ES 82, field curvature and all, as noted above. But the twist-up mechanism in one unit I tested (which I exchanged) was loose and rattled. Faster scopes (below f5.9) are more sensitive and require more expensive EP's and a probably a coma corrector. ***Apparent Field of View measured in degrees. This is an enthusiast's forum - these folks typically take good care of their stuff. On my f/5 to f/6 test scopes, stars started to distort 50 percent out from the center and were quite bloated at the edge, the poorest optical performance of the group, but one thats commensurate with price. So from a practical point of view, I find there's little difference in drift time. In the AD8, the APM delivers tack-sharp stars to the edge. Thus my max AFOVs are; 2.5 is 45 degrees, 3.5 is 65, 4 is 45 degrees, 4.5 is 76 degrees, 5 and 5.2 are 65 degrees, 6.5 is 76 degrees, 7 and 8 are 65 degrees, 9 is 76 degrees, 10 is 70 degrees, 12 is 92 degrees, 13 is 65 degrees, 14 is 80 degrees, 15 is 62 degrees, 17 is 92 degrees, 18 is 62 degrees, 20 is 80 degrees, 22 is 82 degrees, 25 is 60 degrees, 26 is 62 degrees, 28 is 68 degrees, 30 is 80 degrees, 31 is 82 degrees, 34 is 68 degrees, 40 is 70 degrees, 55 is 50 degrees. Bottom Line: A better bargain 82 eyepiece. You would recognize the names of the OEMs if I told you. LMU - Ludwig-Maximilians-Universitt Mnchen, Macromedia University of Applied Sciences, Mediadesign University of Applied Sciences. I still focused on the field stop and never got the spacewalk views others enjoy. I've had both and they are excellent (and same price)! Cons: Field less than others; eyecup height not easily adjustable. For Messier 24 ("Delle Caustiche") even in short focal scope 100 deg. There are many really good ones available in this category, all across the price spectrum. Your scope is a f5.9. They look very much alike the new TS UWANs, but with a special Stellarvue twist reminiscent of their 100 line. Personally, I find the 70-72 degree range perfect for my needs and taste; and there are plenty of offerings in that range with adequate effective eye relief for eyeglass wearers. With some help from the members here, I'm awaiting a 28mm 82 degree Stellarview EP. Optical performance is also identical and excellent for the money. The eye relief is comfortable but a bit tight at around 12mm. It is plenty wide enough and 1.25 inch 82 degree eyepieces are just so much more compact than their 100 degree counterparts. Bottom Line: Very good performance vs. price. And if you like the UWANs, see my review of the WO XWA. I need at least 22mm of effective eye relief. But then again, thats more or less the point the eyepiece gets out of the way so you no longer have the sense you are looking through a round porthole or window. Stars are sharp across all but the outer 20 percent. Don't dismiss buying a used EP out of the Classifieds section - I found two of mine there. Introducing the new Stellarvue Ultra Wide Angle eyepiece series. Bottom Line: A superb eyepiece for 2-inch focusers. Well to be honest, United Optics products tend to be quite good, whether branded as WO or SV, or something else. : Having tried 52, 60, 70, 76 and 82, I'll stick between 70 and 82. LMU - Ludwig-Maximilians-Universitt Mnchen. While low cost for a 100 eyepiece, consider import fees if ordering from Europe. The 4.5mm Morpheus is sharper than the Ethos SX, by a hair. This is like binge watching 4 seasons of a great show with a total cliff-hanger at the end of season 4, only to have the network cancel the show. All marketing. It's all part of the marketing game. In my 80/480 refractor, I find even 50 degrees for "high" power to be quite good--e.g., Nagler 3-6 zoom. I find that the longer the focal length of the scope, the more I wanted wider apparent fields. Building an set of eyepieces takes some time. Good decision! Also, I view with eyeglasses because of my severe astigmatism. Edited by jrbarnett, 08 October 2014 - 02:40 PM. They slap on the "15mm" on the side and everybody assumes it is actually 15mm, when it is really 14mm. This is a superb eyepiece for the money, with the bonus of argon-filled waterproof construction to keep moisture from penetrating and fogging the eyepiece on humid nights. And the 31 was the same as the 30uwa/82, but obviously marketed as a 31 nagler alternative. That is a beast and my first 2 eyepiece. Theres a new alternative for the Celestron NexStar SE and NexStar Evolution series tripod a short, foldable tabletop tripod. But I don't think I would want all my eyepieces to be 100 degree. I had the pleasure of looking through all of the Optimus eyepieces with Vic at the DSSP. Bottom Line: A superb and compact top-class eyepiece. The contrast is good and the view is clear from edge to edge. Bottom Line: A top-class eyepiece for optics and build quality. In the AD8 . But I can't confirm, and they could be a whole new OEM same as the luminos perhaps, rather than the initial SV82 which I am pretty sure was the UWAN. Please Log In to view the details for this classified ad. But I'm thinking a pair of the 16's might make a nice selection for binoviewers. I have a tendency to increase the apparent field as the magnification goes up so I don't have to push the dob quite as much. The 8-element Morpheus design provides nearly top-class performance for much less than the premium competition, which would also include Tele Vues 72 Delos series. Uhno. Edited by David E, 08 October 2014 - 08:14 PM. But yea I mainly like using EP's in the 70 - 82o FOV range. I've used them at outreach events and the nice eye relief and the wide viewport really help the public get a good view, especially the little ones that often struggle to find the image. Might it not be that Stellarvue just have updated the specifications so that they better represents reality? Field stops are different. Crappy skies so I havnt used them yet. Returned it. The value for current overall gradeis the numerical value corresponding to your current overall letter grade. The Orion and Vixen 82 eyepieces are also superb in all aspects, though at prices similar to Tele Vue. For planets 30-40 deg. Posted by Steve Lightstone on 8th Aug 2020. Keep in mind, like appliances, or anything else, just because the OEM is the same, and they look the same on the outside, it doesn't mean they will always be the same on the inside. Bottom Line: The best for optics but others provide more comfortable viewing. All of my scopes are on manual mounts, so I agree, the larger the AFOV the better. There are lots of OEM products floating around. The ergonomics of them is quite nice to me, fit the hand very well allowing for a good grip on them. You currently have javascript disabled. }. For some reason, uncle Al seems to have a monopoly on 13-16mm compact 82s that perform well in fast scopes as the 16 UWAN was the weak link in that line as well, but I don't remember ever trying the 16, or scrutinizing the 15mm axiom LX vs the 14 Meade or ES. It eliminates the need to rebalance the telescope. The 28mm UWAN does not appear to be available any longer, but here is an old CN article about the line. In the 10 inch, that's 820x, the TFoV is slightly less than 6 arc-minutes, 1/10 of a degree. New from SV? Its barrel fits only 2-inch focusers and so requires more costly 2-inch filters. But its the design and optical ease of a design that makes an eyepiece good for me. All in all, exactly what you'd expect from Stellarvue: A great product at a reasonable price. With the 20 mm I will then have 32, 20, 16 and 10 mm equivalents. In WO livery the 4mm's a nice ep for those nights that support it. And there are some very good options.. For wide field eyepieces, TeleVue introduced nearly all the modern designs starting with the first Nagler more than 40 years ago. They were identical to the UWANs (and 5 other brands of the same eyepieces). In the case of the old JOC days, the axiom LX 15mm was probably the same as the 14mm UWA. There are also 60 degree eyepieces like the Starguider ED and Paradigms. Bottom Line: Another fine ultra-wide eyepiece for the money. The apparent field is indeed noticeably wider than the other 82s. I briefly experimented with a 100-degree eyepiece but it felt exactly like the 82-degree field, with the exception of shorter eye relief. Effect of barlows / field flatness for AT60ED solar imaging, Jon Isaacs, SpaceConqueror3 and mrsjeff like this, sportsmed, edsmx5 and Someone4322 like this, Dave Mitsky, John Huntley, CeleNoptic and, izar187, pj_thomas and Alex Swartzinski like this. This is a recommended complete set of eyepieces for use with any Stellarvue telescope from the SV70T to the SV152 Flagship! As Jon said, it will take some time to build an eyepiece range. But the price is the highest. I wouldn't expect additional focal lengths. Academic Ranking of World Universities (ARWU) #48, Academic Ranking of World Universities (ARWU) #52, private (state-approved) University of Applied Sciences, View all 231 courses still open for next intake, Marketing services for German Universities. This eyepiece is ideal for higher power work on planets and double stars since it is very sharp, contrasty and has a generous 82 degree field of view. Haven't noticed these before. Introducing the new Stellarvue Ultra Wide Angle eyepiece series.This ultra wide field eyepiece has almost 3 times the area of a 50 degree eyepiece. All rights reserved. It is likely KUO like the WP Meade UWA, who also make the UWAN/PWA. Oh, barlowed the 15mm starts to show curvature around the 80-85% mark for my eye and the 4 and the 8mm the same since already barlowed. A year ago, they had 3 focal lengths of 82 eyepieces of 4, 7, and 16mm, and I reported them in the 2016 Guide to eyepieces. The knurled grip rings and construction of both are superb. When using hand driven alt-azimuth mounts this generous field will be appreciated. Read Alan Dyers review of five 100-degree eyepieces, Tag List televue Celestron eyepieces ORION TELESCOPE meade Explore Scientific vixen optics stellarvue antares morpheus. FWIW I looked at the Pleiades yesterday with a 32mm Plossl, a 24mm UFF (~65 AFOV) with my XT10 which has the same focal length as your telescope. The eyepiece offers a generous 15 mm of eye relief and has a standard foldable rubber eye cup. There has always been a good OEM behind WO and SV, but the winner is the consumer, who quite frankly doesn't care because the consumer can't buy directly from the OEM. The true field of view is 0.75 degrees, with an exit pupil of about 1.9 mm. Read Alan Dyers comparison of nine 82-degree eyepieces, Tag List TELESCOPE meade eyepiece Explore Scientific tele vue omegon stellarvue. Despite its size and dual barrel, its mass is only 586 grams, less than some of the competitors. Your grading system is A+, A, B, C, D and E (Fail). However, eyepiece preferences are very personal and you will find a lot of different opinions on this series and its individual focal length. 2023 Astromart.com. Bottom Line: A good ultra-wide eyepiece for the money. Its smaller, lighter, and cheaper than the bigger ASIAir Plus astrophoto computer, but is it as good? I test ZWOs new ASIAir Mini. Why 5 stars? Features --20mm focal length --100 apparent field --15mm eye relief --9 element design --fully multi-coated With 20mm of eye relief and a large eye lens, this is a very comfortable eyepiece to look through. The Stellarvue Ultrawide eyepiece set includes three eyepieces: 4.0 mm 1.25" Ultrawide angle eyepiece with 82 degree apparent field of view ( click here for specifications) 8.0 mm 1.25" Ultrawide angle eyepiece with 82 degree apparent field of view ( click here for specifications) Hmmm, looks like those four focal lengths are the only ones they make, at least for now. You may see the shadow of the secondary mirror with this eyepiece and exit pupil. Don, I know the FS size controls the AFOV, but I thought the F/L was inherent to the optical design? As for "triple testing" eyepieces, that I seriously doubt happens. Maybe the following might help: This shows the FoV for a 28mm 82 deg, a 25mm plossl, and a 7mm Xcel EP on my Orion XT8 ( 203mm/1200mm = f5.9), Jon, I 'll be needing some guidance soon; the 28/82 is on the way: using that and my 7mm Xcel as a base, I'll be upgrading/replacing the others to flesh out a "good" set. Pros: Lightest 100 with good eye relief. A 100 degree field of view provides the user with almost 1.5 times the area of an 82 degree eyepiece. Several functions may not work. Does anyone know anything about the new Stellarvue UWA's? A year ago, they had 3 focal lengths of 82 eyepieces of 4, 7, and 16mm, and I reported them in the 2016 Guide to eyepieces. Please re-enable javascript to access full functionality. Drift time is about 20 seconds. I would be very surprised to find out that this new Stellarvue line is not the same as the new TS UWAN line. Never occurred to me that they might actually be the same. It is important the image stays sharp as it crosses the field, and it does in both eyepieces, but the Ethos SX is better for double stars and planets. However, with your eye positioned where it needs to be to see the whole field, the field partially blacks out with squirming kidney-bean shadows (technically called spherical aberration of the exit pupil). Or know anything about the design and/or origins? Not quite so easy a question. This affect is more pronounced in lower magnification, wide-field EP's. Cheers. Has anyone out there tried both or have any thoughts? I think probably not. Pros: Very comfortable eye relief; superb optics. Orion sold them as did WO too. Pros: Great optics; wider field; comfortable eye relief and eyecup. I recently purchased the 9 mm Optimus eyepiece after my excellent experience with the 20 mm Optimus. Converted grades are calculated using the modified Bavarian formula, as stipulated by the resolution of the Kultusministerkonferenz (German PDF, 0,1MB). Will 1.25 inch eyepieces fit ES coma corrector? When using hand driven alt-azimuth mounts this generous field will be appreciated. (Yeah, yeah, I know that's asking a lot.). Bottom Line: Economical but with optical flaws. A 20mm eyepiece with a 100 field for only $300 seems too good to be true! Introducing the Stellarvue Optimus eyepiece series. The specifications state an 86 apparent field but it appeared to be the same as the other 82 models. Toss-up, both a bargain @ $200. Good heft without being too heavy. On the 2-inch focusers on my Newtonians I had to pull the eyepiece out a little in the draw tube to have it reach focus. The top dust cap fits on only when the eyecup is retracted, an inconvenience. The one piece of information I have not been able to find here or on other forums is what FOVs people prefer, whether the specified field of view is at specific focal lengths or in general. The 100 eyepiece tripod. Thanks! While the 76 Baader Morpheus provides slightly less field of view than the rest, the long eye relief and excellent image quality makes it new favorite of mine, and worthy of consideration. They slap on the "15mm" on the side and everybody assumes it is actually 15mm, when it is really 14mm. The most eyepieces I use are 65 to 70 degrees. Anything is possible. 15mm Stellarvue is identical to the 14mm ES 82, field curvature and all, as noted above. To be totally fair, not all eyeglass wearers are the same or require the same amount of eye relief. display: none !important; We are not all the same when it comes to eye relief requirements, especially when choosing an eyepiece that has more elements than the 5 element budget wide field types. Once you look through eyepieces with 82 apparent fields, all lesser eyepieces give the impression of looking down a tunnel. Like the Ethos, it can be used as either a 2-inch or 1.25-inch eyepiece. STELLARVUE OPTIMUS 20MM 100deg 2.0" 9-ELEMENT EYEPIECE Description Technical Specs Extended Information Stellarvue Optimus 20mm 100deg 2" 9-element eyepiece--lighter and sharper than its competition, this eyepiece redefines "wide" field. The amount of head tilt needed to see the edges of the field are less than other ~100 degree eyepieces, including Ethos, ES, and APM. Maybe Vic star tests these though! However, on a Schmidt-Cassegrain, with its more forgiving f/10 focal ratio, off-axis sharpness was much better. I am also intrigued by the 4mm. I have the Stellarvue 15mm UWA and it needs some focal length to clean up the field as curvature starts getting beyond tolerable for my eye around the 65-70% mark in an f/7 600mm refractor. No. if(sWOTrackPage)sWOTrackPage(); (2011) 1,348,335; (2021 est . Astromania now sells a 32mm, but I suspect it is a 31mm Luminos. The latter had good optical performance, but with a twist-up eyecup mechanism that was stiff and greasy in the unit I tested. While the NexStar SE/Evolution Celestron, Celestron Tabletop Tripod, NexStar SE. Can't beat it for the price, especially since the market has gone insane. I think the common view is that they are in the ES class performance wise. As good as these 82 eyepieces are, if your budget allows, you might want to consider an even wider 100 eyepiece. One thing I like about the type 6 Naglers for doubles is that they're parfocal. That doesn't happen with 100 degree eyepieces. #wo_online_image, #wo_offline_image { Especially comparing them to the ES line. They were identical to the UWANs (and 5 other brands of the same eyepieces). But the soft eyecup nicely places your eye where it needs to be with no kidney-bean blackout. All of these factors add up to create an extremely contrasty eyepiece that is free of unwanted reflections, flaring or ghosting. This eyepiece is ideal for higher power work on planets and double stars since it is very sharp, contrasty and has a generous 82 degree field of view. Widest range of top-quality eyepieces, from 3.5mm to 31mm Known for having flat fields and high contrast as well as great clarity Backed by Tele Vue's excellent quality control Explore Scientific 82 Degree Eyepieces Comments All focal lengths are waterproof/argon purged Excellent apparent field of view at 82-degrees Well, that was true until the Stellarvue 28mm / 82. Make no mistake, these are large and heavy eyepieces, with some requiring 2-inch focusers. I like short UWA's as I only use muscle drive mounts, and I don't have a UWA in 4mm. For starters, you can get by with your 9mm (unless you need to wear eyeglasses) and 30mm. Munich, German Mnchen, city, capital of Bavaria Land (state), southern Germany. The Stellarvue 82 is well made, with a compact, solid construction, good 14mm of eye relief (better than the stated 12mm) and a fold-up eyecup. It can fit either a 2-inch or 1.25-inch focuser but requires only 1.25-inch filters. Some models sell for as much as $700 to $1,000 each. The focal length choices seems a bit odd to me: 28mm, 16mm, 7mm and 4mm, but perhaps more focal lengths will fill in the gaps later. Edited by betacygni, 05 March 2023 - 10:45 AM. This is not recommended for shared computers. I have never used any of the super mega ultra extra wide eyepieces. MyGermanUniversity.com is Germany's largest database for English-language Bachelors and Masters programs (refers to degree programs with at least 50% English-taught course modules from German universities). I was surprised! I am fortunate that I do not need to wear glasses.. Over the years, I have built up a collection of eyepieces that includes multiple sets. Probably not by much, if at all. Build quality 2nd to none.., relatively light for it's size.., but most of all the view is spectacular, all the way out to that wide 100 degree FOV. And of course your first light with the other eyepieces and the sweet SV80A (it's on my short list!). types of knurling in blister packaging, deutsche bank building body parts, mount joy township ordinances,
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