That is unless it's purely coincidental that these appear to be the same as well-known OEM UWAs, and in fact Vic actually designed and manufactured every single one of them by hand using his automated CNC lathes, grinding and polishing equipment, and then triple tests them before shipping them to the user. If the ones from Stellarvue also share these specs, then there is no doubt they come from the same assembly line. I haven't used it in the field and it's pretty heavy but it's my best shot and easy access. I'm hoping they will be sharp to the edge at f/7. 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. Program Fees: 0 - 10,000 (per semester) Academic Ranking of World Universities (ARWU) #48, QS World University . He sells a 4.9mm and a 6.1mm, I also have his 2.9mm which seems to have been dropped from the lineup. It's the same at low power, which Ernest just pointed out. Introducing the Stellarvue Optimus eyepiece series. Good decision! I am also intrigued by the 4mm. This grade conversion formula, together with your degree program's Academic and Examination Regulations (FPSO), is a tool to help your convert grades earned in countries other than Germany. Do you search for top universities and information on admission requirements, language certificates (TOEFL/IELTS) and application deadlines? Introducing the Stellarvue Optimus eyepiece series. The OEM can be contracted to make them to whatever specifications, exacting or not, that the "name on the product" requires. A frequent example on here is the 84 degrees of the Docter 12.5, which is a highly accessible but wide field. Pros: Best eye relief and off-axis star images. Note: For definitions of basic eyepiece characteristics mentioned below, see Ed Tings A Beginners Guide to Telescope Eyepieces. Going Wide: Nine 82-Degree Eyepieces Compared, A Beginners Guide to Telescope Eyepieces, Price and Quality in a High-Power Zoom: SVBONY 3mm-8mm Zoom Review, Celestron Tabletop Tripod Review: Sometimes Smaller is Better. Cons: Very aberrated off-axis star images; slightly less than 82 field. When I decided that I wasn't agreeing with an eyepiece, I sold it back on the used market for what I paid for it. This is the original 100 eyepiece and is still the standard of excellence. Grade Conversion using the Bavarian Formula. Buy all three of our high end 82 degree eyepieces and save! 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. When using hand driven alt-azimuth mounts this generous field will be appreciated. The A-T 28UWA/StellarVue 82 and APM 30UFF has already been mentioned in this thread. 3. If you're not sensitive to curvature perhaps give it a go but honestly if you have on hand a 2x and a 3x barlow just get the 15mm because then you'll have all three. Buy all three of our high end 82 degree eyepieces and save! I've had a few of their scopes that are well made, and well corrected, but labeled as someone elses. That is a beast and my first 2 eyepiece. If theres one premium eyepiece to buy, it will likely be in this focal length range. Don't know if this means that that the actual focal lengths are different? 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. They were identical to the UWANs (and 5 other brands of the same eyepieces). 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. There are more expensive products, but do they perform any better? 70 is fine at low power, 78-85 fine at medium power, but I prefer 110 at high power. 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. Of the lower-cost 82 models, this was a good choice overall for both optics and mechanics. I was surprised! Though more costly, the Stellarvue Optimus also stood out for price vs. performance in a full 100 eyepiece. While the rubber eyecup can fold down, it is stiff enough that it is best left up. You may see the shadow of the secondary mirror with this eyepiece and exit pupil. The only cons I've noticed is that they are big and heavy and change the balance point for my small scope+cheap mount and like any other optical system they have to cool down to ambient temp to get the best view (which takes a few minutes). You are right, he has a complete optical and CNC machine shop at his facility. While low cost for a 100 eyepiece, consider import fees if ordering from Europe. This is the largest and heaviest of the 1.25-inch eyepieces, with a mass of 400 grams. They made their own products as well. 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. Edited by Jim7728, 08 October 2014 - 01:32 PM. 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. Top 100 Worldwide. On axis the field is nice but as you creep out from the center the curvature becomes apparent. Stars are sharp across all but the outer 10 to 15 percent of the field, so very close to Nagler performance. MSRP $350. I tested nine brands of 82 eyepieces, all in the 13 mm to 16 mm range, a focal length that provides moderate power on most telescopes and so is suitable for all types of viewing. Bottom Line: A superb eyepiece for 2-inch focusers. Anything more than 82 would have me wasting time rolling my head seeing "what's out there" vs concentrating on what's in the center of the field. Stars begin to distort in the outer 25 percent of the field, so worse than the Explore Scientific and Tele Vue Ethos, but still very good, especially for the price. Anyone tried them? Fancy eyepieces are expensive, simpler eyepieces can be nearly as good and much more affordable. You probably won't notice the difference. I've been looking at purchasing some additional eyepieces from those that came with my AD8 Apertura (9mm and 30mm). Bottom Line: A good, economical choice for Schmidt-Cassegrains. 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. All of this experimenting made me settle on 70 as a nice middle ground. This particular line saw its sales creamed by the superior ES 82s when the price on the latter was reduced. 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) But just as outsourcing is more desirable at times, as it is with his ED doublets or now discontinued Russian optics, it would be inane to attempt to make eyepieces when United Optical can make them as good as he can for much less cost. This 9 mm eyepiece is ideal for moderate power work on moons, planets and dark sky objects. For Messier 24 ("Delle Caustiche") even in short focal scope 100 deg. Click here to create one. I bought this and the 4.7mm on a whim when picking up an SV60. Tight eye relief, a lot of field curvature, and edge-of-field brightening at f/10. But what matters is who you buy it from, the specifications, customer service, reliability, and price (of course), when making your actual purchasing decision. This counterweight system is used to quickly adjust balance on smaller telescopes when eyepieces of different weights used. This was part of a 3 piece set and I won't be using this one. Though advertised as 82, Celestrons 15mm Luminos had an apparent field between that of the 76 Morpheus and the other 82 models. Cons: Slightly soft off-axis performance. Has anyone out there tried both or have any thoughts? Mega gratz on your new scope NIckwin. Its barrel fits only 2-inch focusers and so requires more costly 2-inch filters. Accessories, Astrophotography gear, Reviews. Eye relief is a good 16mm, much longer than the 10mm specified. With a 10 inch Newtonian at an f5 focal ratio, the 50mm eyepiece you are considering will produce a 10mm exit pupil. Either model represents an excellent value in a mega-wide eyepiece. Which points out that the appropriate high power apparent field depends a lot on the focal length of the scope and whether the scope is tracking. 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. In this complete system we include the large 28mm 2" wide field eyepiece for low power, the 8mm ultra-wide angle eyepiece for medium power, and for high power we provide the 4 mm ultra-wide angle eyepiece. Alan Dyer is an astrophotographer and astronomy author based in Alberta, Canada. Field stops are different. Bottom Line: A top-class eyepiece for optics and build quality. Pros: Very good optics and waterproof construction. For planets 30-40 deg. A 100 degree field of view provides the user with almost 1.5 times the area of an 82 degree eyepiece. I had been planning on getting ES 82 degree EP's, but I just couldn't pass these up for the $. I've pretty much settled on 68-72 degree eyepieces. Anything is possible. Bottom Line: A good ultra-wide eyepiece for the money. Bottom Line: Economical but with optical flaws. Pop. They slap on the "15mm" on the side and everybody assumes it is actually 15mm, when it is really 14mm. Eyepiece Field of View - Apparent: 82 Eyepiece Focal Length: 8 mm Eyepiece Eye Relief: 12 mm Eyepiece Series: Stellarvue Ultra Wide Angle Eyepiece Weight: 6.5 oz. 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). Teasing me? At TUM, grades from 1 to 5 are assigned. 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. LMU - Ludwig-Maximilians-Universitt Mnchen, Macromedia University of Applied Sciences, Mediadesign University of Applied Sciences. Crappy skies so I havnt used them yet. That doesn't happen with 100 degree eyepieces. Will 1.25 inch eyepieces fit ES coma corrector? 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. If so, you will need eyepieces with longer eye relief. Based on the 14mm SSW, I can recommended the series, though they are even more costly than Nagler Type 6s. In short, I found it uncomfortable to use. Are you looking for a List of Universities in Germany for International Students? Pros: Good off-axis sharpness and eye relief, but . It is been known for a long time that the 7mm UWAN is closer to 8mm, so maybe the previously given field stop specifications have been misrepresented so that the focal length-FOV equation should add up on paper(?). Tele Vues Type 6 Naglers are small, light and tack sharp across the field, even on fast f-ratio telescopes. And the color-coded cosmetics of the SSW series are attractive, though somewhat moot in the dark under red light. At 564 grams even with its 2-inch adapter tube, Stellarvue's Optimus is the lightest of the 100 set, a consideration for balancing smaller telescopes. Don't have an Astromart account? Make no mistake, these are large and heavy eyepieces, with some requiring 2-inch focusers. . 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. The contrast is good and the view is clear from edge to edge. Accessories, Astrophotography gear, Reviews. Its smaller, lighter, and cheaper than the bigger ASIAir Plus astrophoto computer, but is it as good? 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 degreeapparent field of view (click here for specifications), 15.0 mm 1.25" Ultrawide angle eyepiece with 82 degreeapparent field of view(click here for specifications). Very fast shipping and packaging. Read Alan Dyers comparison of nine 82-degree eyepieces, Tag List TELESCOPE meade eyepiece Explore Scientific tele vue omegon stellarvue. eyepiece will limit observer significantly. It is Bavaria's largest city and the third largest city in Germany (after Berlin and Hamburg). (2011) 1,348,335; (2021 est . Stars are sharp across all but the outer 15 percent of the field and are still tight at the edge, though with some lateral chromatic aberration. It can fit either a 2-inch or 1.25-inch focuser but requires only 1.25-inch filters. At under $200 this eyepiece is a great way to get those wide views at a reasonable price. Enter the maximum grade, the minimum passing grade, and your current overall grade in the grading system of your university. They slap on the "15mm" on the side and everybody assumes it is actually 15mm, when it is really 14mm. I like having eyepieces at my fingertips. The top dust cap fits on only when the eyecup is retracted, an inconvenience. The specifications state an 86 apparent field but it appeared to be the same as the other 82 models. In eyepieces, models with the extreme apparent field of 100 rank at the top for performance - but also price! While the NexStar SE/Evolution Celestron, Celestron Tabletop Tripod, NexStar SE. They're just too big and heavy and more of a novelty view for me, whereas my 82's are quite comfortable. You sometimes feel more like you are actually there, in the view. Collecting EP's is a journey for sure in finding out what you really like. That is unless it's purely coincidental that these appear to be the same as well-known OEM UWAs, and in fact Vic actually designed and manufactured every single one of them by hand using his automated CNC lathes, grinding and polishing equipment, and then triple tests them before shipping them to the user. . They look as good to my eye as any of the other high-end eyepieces I've used. No question they set the standard. Your grading system is A+, A, B, C, D and E (Fail). All marketing. Cons: Field less than others; eyecup height not easily adjustable. The rubber eyecup can be raised higher with the use of an included extension ring; a twist-up mechanism would have been preferable.
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