![]() ![]() When I look through them, even after years of use and with a few Televues etc. I still usually go for the Paradigm and enjoy! These at least match a good high power planetary EP and Barlow of similar equivalent focal length but with better FOV.Īs others have said, if you use a Dob or any undriven scope, these are the basic set to have by a large margin - your no-brainer solution to a great set of EPs, even when compared to those in the higher price ranges. The contrast isn't quite what a Plossl or Ortho can do but only by a small amount (because you're looking through more glass elements in the Paradigm), but the small difference in contrast is more than made up for by the FOV and sharpness across most of the field. I even grab for the 5 and 8mm Paradigms for planetary simply because the FOV is so comfortable and viewing is more enjoyable. Otherwise these are the EPs to have for everything else. One exception - for high power planetary get an ortho or two IF you're fussy about every tiny bit of detail. If you have to stick with a handful of EPs, these should be it. Get these first as a basis for your collection. ![]() If you're just starting your EP collection, other specialty EPs can wait. I find myself grabbing for these every time out even though I have more expensive EPs. Excellent all-around wide field, long eye relief EP. I have had four of these in various focal lengths for a few years, now just waiting for the 12mm to come in to complete the set. I plan on buying more Dual EDs and rounding out my magnification range since I've had such a good experience with them. I also have an Explore Scientific 24mm 82 degree eyepiece, and while the huge increase in FOV is noticeable, the views are roughly just as sharp in these little guys. ![]() Overall it's very difficult to beat these eyepieces. That said, it still does the job, it just requires a little more practice and careful movement than a soft eye cup. It's easier to get to the right eye relief distance with more light blocking and less scope bumping with a soft rubber eye cup design. I personally think the solid retractable eye cup is more of a gimmick than a useful feature. And I'm very familiar with different types of aberrations from a terrestrial photography hobby. Views are well resolved, and while I'm a beginner, I've noticed very little aberrations in either Dual ED Paradigm. I use this 8mm Dual ED Paradigm along with an 18mm Dual ED Paradigm in my 10" f/4.7 (1200mm FL) Dobsonian. This new Astro-Tech 8mm Paradigm Dual ED eyepiece will make you rethink your expectations about just how good an 8mm eyepiece you can get for such a reasonable price - and make you wonder why other manufacturers can't do as well. Combined with the twist-up eyecup design, the long eye relief makes it a good choice for eyeglass wearers. It has a usable eye relief of 13mm, excellent for an eyepiece in this focal length range. The six lens/four group design and two ED (Extra-low Dispersion) glass elements of the 8mm Astro-Tech Paradigm provides all of the optical virtues described at the top of this catalog page - high contrast, a sharp and flat field from edge to edge, excellent color fidelity, and exceptionally low astigmatism and barrel distortion. Its sharpness and lack of astigmatism across the field makes smaller globular clusters vivid and nearly three-dimensional. If so-so seeing is the norm where you observe, its 8mm focal length may represent the shortest focal length practical with a long focal length telescope for observing lunar and planetary detail, resolving globular clusters, picking up small planetary nebulas against a stellar background, etc.Ĭontrast is very good for planetary and lunar use, rivaling that of orthoscopics and Brandons, but with a substantially wider field of view and excellent eye relief. Below average seeing conditions may limit its performance. This Astro-Tech 8mm Paradigm Dual ED eyepiece is a logical choice for high quality/high magnification observing with long focal length refractors, reflectors, or catadioptric scopes under good to somewhat better than average seeing conditions. Various Used and Demo Scopes and Mounts.Astro-Tech AT60ED and AT72EDII Black Friday Sale.Explore Scientific Nebraska Star Party Sale.Various Closeouts Meade, Kendrick, Bob's Knobs, JMI and others.Astronomics Used, Demo, Closeout, Spring Cleaning Page. ![]()
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