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Hello,

Eye relief is the biggie between these two EPs. The 17 has plenty, even enough to wear glasses if you need them, but the ER is tight on the 16. Some folks like to cram their eyeballs into an EP and some don't.

FWIW, I find the 17 is more immersive, giving more of the impression of being in space rather than the impression of looking into an EP. But that is very subjective...

My 0.02, Eric

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DITTO!

I've owned both, and my T5 lasted one week. IMO the 16T5 is just not in the same league with the 17T4!

I now own all of the T4s, and I just won't put up with the short eye relief and small eye lenses of the T5 and T6 Naglers.

An exception for me would be the 26T5 and the 31mm Naglers, which I understand have good eye relief and big eye lenses

It's my feeling that large eye lenses add to the "lost in
space" immersive experience that the 17T4 and 22T4 are famous for! Of course, the Nagler's 82 degree AFOV is a given...LOL!

My passion is DSO observing, and for this, my 22T4 is my most often used eyepiece followed closely by my 17T4!

Cheers!
Bob

12" F/4.9 Intelliscope with COL

10" F/5.0 Coast Instrument Treckerscope, circa 1956

Stratus 35mm, Naglers 22T4, 17T4, and 12T4. BO/TMB 7mm and 5mm. TeleVue Paracorr

Barlows: GSO 2"ED 2x, Orion Shorty Plus 2.2x, TeleVue 2.5x, Coast Inst. 3x

Edited by Bob W6PU (08/08/08 03:28 PM)

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