Hi Glenn & All,
Quote:
Originally Posted by Glenn Dawes
I find your choice of eps (power) interesting. I found, even with the 16" I needed the 200x of the 9mm Nagler to get a clearer view of the small clusters (you know the dozens of them listed as being 1 arcmin in dia). However with the 9mm I might still have a wide field, but the true field was only 20 arcmin - no wonder I kept getting lost!
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Of course you are right -- when it comes to seeing
maximum detail in small low-contrast objects, high-moderate magnification rules. The 2mm exit-pupil rule is important.
Accordingly, my two most used eyepieces are my 12mm T II and 9mm T I Nagers which give x185 and x247 with exit-pupils just over and just under 2mm. I find the 16mm T II frames The Tarantula (NGC 2070) -- by itself beautifully but to take in the context of the surroundings, the 20mm T II and 26mm T V are wonderful. And as for this motorised sweeping around, they are hard to beat on the issue of breadth of field. You really feel like you are flying over the LMC
Glad your'e happy with the series 5000, I've never looked through one myself so I can't comment on them. I have looked through many of the earlier series 4000 UWA's and they were certainly sharp pieces of glass. Eyepieces are an intensely personal thing. What "brand" or "design" works for one person won't necessarily find favour with all others. It's a pity you can't drive before you buy.
Haven't looked through any Ethos yet either. I'm too afraid ... for my wallet !
Best,
Les D