Pros: Great optics; comfortable eye relief and eyecup. TS have kept the old 4/7/16mm focal length specifications. 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. Its smaller, lighter, and cheaper than the bigger ASIAir Plus astrophoto computer, but is it as good? Make no mistake, these are large and heavy eyepieces, with some requiring 2-inch focusers. Thanks for the input, I appreciate it. i think that what you are going to hear is : "what are you interested in looking at ?" But the price is the highest. The 4 and the 8mm have barlow lenses in them and they are the same eyepiece other than the barlow lens. 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. Bottom Line: Economical but with optical flaws. I think probably not. This particular line saw its sales creamed by the superior ES 82s when the price on the latter was reduced. Well, that was true until the Stellarvue 28mm / 82. The rubber eyecup can be raised higher with the use of an included extension ring; a twist-up mechanism would have been preferable. But I'm interested in the 16mm as I don't have a UWA in that focal length (I used to have the old 5000 series Meade 18mm UWA but sold it). Please note: Internationally, grading systems used at institutions of higher educations may differ substantially. Reducer Flatteners for other telescopes, Finderscope Eyepieces with Focusing Reticle, Barlows to double the power of your eyepieces, Stellarvue 9 mm 100-Degree 1.25/2" Optimus Eyepiece - EOP-09.0, Stellarvue 20 mm 100 Degree 2" Optimus Eyepiece - EOP-20.0, Stellarvue 3.6 mm 110-Degree 1.25/2" Optimus Eyepiece - EOP-03.6, Stellarvue 8 mm Ultra Wide Angle 1.25" Eyepiece - EUW-08.0, Stellarvue 4.7 mm 110-Degree 1.25/2" Optimus Eyepiece - EOP-04.7, Stellarvue 13.5 MM 100 Degree 1.25"/2" Optimus Eyepiece EOP 13.5. At least I think they are new because I can't find anything about these focal lengths, they currently have 4, 8, and 15mm available. Having tried 52, 60, 70, 76 and 82, I'll stick between 70 and 82. Introducing the Stellarvue Optimus eyepiece series. This affect is more pronounced in lower magnification, wide-field EP's. I've been thinking about getting the 15mm as my first non-cheapo eyepiece so I'm looking forward to hearing what you think about it. Orion sold them as did WO too. While low cost for a 100 eyepiece, consider import fees if ordering from Europe. I think these are the same that WO(?) Its barrel fits only 2-inch focusers and so requires more costly 2-inch filters. With the eyecup folded down it can be used with eyeglasses, but only just. With a 10 inch Newtonian at an f5 focal ratio, the 50mm eyepiece you are considering will produce a 10mm exit pupil. A best buy. In the 10 inch, that's 820x, the TFoV is slightly less than 6 arc-minutes, 1/10 of a degree. The Omegons weight is 600 grams, at the lower end of the range for eyepieces in this group. 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. The ergonomics of them is quite nice to me, fit the hand very well allowing for a good grip on them. Fancy eyepieces are expensive, simpler eyepieces can be nearly as good and much more affordable. The 102 degree Nikon HWs are another good example. I've pretty much settled on 68-72 degree eyepieces. They are obviously not a redesigned barrel on the old ones. Eye relief is a very long 20mm. I've spent a decent amount of time with an 82-degree eyepiece, but the extra field never seemed very immersive to me. One thing I like about the type 6 Naglers for doubles is that they're parfocal. But I still prefer the Ethos SX on Uranus and Neptune because it gives me a much longer time between nudges and that allows me to relax more when looking. The result given here is non-binding, as this grade converter can only provide a general first estimation. This is an enthusiast's forum - these folks typically take good care of their stuff. Bottom Line: A good ultra-wide eyepiece for the money. any limitations are just limitations and can not be named "favorite", (2) acceptable (not a favorite) eyepiece AFOV depends from nature of observing object. Please note that this tool is only intended to provide a first orientation and the results are in no way binding. Waiting Period: We are in continuous production and operate one year in advance. For 1.25" 82 eyepieces, I have a mixed set of Televue, ES, and UWA. Effect of barlows / field flatness for AT60ED solar imaging. Not to say that normal 50 and wide-field 65 eyepieces arent excellent, but for a more immersive viewing experience most telescope owners add at least one, if not several ultra-wide 82 eyepieces to their collection. . Please re-enable javascript to access full functionality. All of this experimenting made me settle on 70 as a nice middle ground. The knurled grip rings and construction of both are superb. Stars are sharp across all but the outer 20 percent. At NEAF, I purchased the 16mm UWA from Stellarvue for $95. . A 20mm eyepiece with a 100 field for only $300 seems too good to be true! Pros: Lightest 100 with good eye relief. If the grading system of your university uses letter grades, you can assign a number to each letter grade. Not saying that's a bad thing, just sort of distracting. Edited by jrbarnett, 08 October 2014 - 02:40 PM. But it is an excellent and attractive, though large, eyepiece at a slightly lower price than a Nagler with much better eye relief. 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. While the NexStar SE/Evolution Celestron, Celestron Tabletop Tripod, NexStar SE. The eyepiece offers a generous 15 mm of eye relief and has a standard foldable rubber eye cup. However, on a Schmidt-Cassegrain, with its more forgiving f/10 focal ratio, off-axis sharpness was much better. #wo_online_image, #wo_offline_image { 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. The rarity and significance of O-type stars brighter than 6.55 magnitude. Astronomy Clubs, Star Parties, Shows, & Conferences, Community Forum Software by IP.BoardLicensed to: Cloudy Nights, This is not recommended for shared computers. 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). eyepiece will limit observer significantly. It is likely KUO like the WP Meade UWA, who also make the UWAN/PWA. They make a good addition to the Stellaruve brandedplanetary eyepieces he has already been selling. 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. I have never used 100o EP's but they are larger/heavier so you might have balance issues depending on scope/mount setup. For me, I love 82 degrees, it feels just right. I have the WO versions of these and find them very good, indeed! Notice how it's sharp in the center and as you get to the edge the stars grow tails? At under $200 this eyepiece is a great way to get those wide views at a reasonable price. Be informed, it can't hurt you. 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. Anyone know who makes the StellarVue Planetary eyepieces? 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. But I prefer wider fields when possible - 82 to 100 degrees. Holding your eye in the proper position is way easier. It's a great eyepiece. For a differentiated assessment of the examination performances, the grades can be increased or decreased by 0.3 to intermediate values; the grades 0.7 and 5.3 are excluded. Report back witn with your thoughts when you get a chance. Pinpoint stars to the edge, M27 is amazing in my 14" Dobsonian. Most suffer from variable plossl, svbony, SVBONY Zoom Eyepiece, Zoom eyepiece. This is why some wide field EP's cost more, some, a lot more. 15mm Stellarvue is identical to the 14mm ES 82, field curvature and all, as noted above. I briefly experimented with a 100-degree eyepiece but it felt exactly like the 82-degree field, with the exception of shorter eye relief. Don, I know the FS size controls the AFOV, but I thought the F/L was inherent to the optical design? Building an set of eyepieces takes some time. But viewing with glasses on is still possible. Ive never been a fan of zoom eyepieces. At TUM, grades from 1 to 5 are assigned. While still impressive, they arent as wide as the others. Some people love the porthole views of 100-degree eyepieces, and others like me would rather have a cozy field stop that's easy to take in with long eye relief. 51,000 students. Congrats! The eyepieces rival Televue but they were sold to fund an Ethos. Of the lower-cost 82 models, this was a good choice overall for both optics and mechanics. if(sWOTrackPage)sWOTrackPage(); When using hand driven alt-azimuth mounts this generous field will be appreciated. I find that the longer the focal length of the scope, the more I wanted wider apparent fields. Astronomy Clubs, Star Parties, Shows, & Conferences, Community Forum Software by IP.BoardLicensed to: Cloudy Nights. I find the Televue better, but both the ES and UWA are very close. Nuff said! I ordered mine from Omegon and overseas delivery was prompt. As good as these 82 eyepieces are, if your budget allows, you might want to consider an even wider 100 eyepiece. Most suffer from variable plossl, svbony, SVBONY Zoom Eyepiece, Zoom eyepiece. 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. The field is so wide it can be hard to see the edge of the field. Edited by Someone4322, 06 March 2023 - 03:36 AM. Thanks. Enter the maximum grade, the minimum passing grade, and your current overall grade in the grading system of your university. 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. You probably won't notice the difference. The 4.5mm Morpheus is sharper than the Ethos SX, by a hair. Its long 20mm of eye relief, screw-up eyecup and large eye lens makes Orions Lanthanum a pleasure to use. Old thread, but thought I would ask here first just in case instead of starting something new Stellarvue is running a sale on a 3 piece set of their 82 degree eyepieces for $292 while ES 82's are on sale for $99 each. display: none !important; Not quite so easy a question. This is the original 100 eyepiece and is still the standard of excellence.

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