Excelsis - Display Vote

TeleVue Nagler Type 5 16mm

I use this EP to sweep the Milky Way for nebulae and globulars in my 10" f4.8 dob. It's simply a wonderfully wide FOV, superb sharpness in the center field of view where coma is negiglible. Construction and finish is excellent. I really like the lightweight 1.25" format, which helps with balance, and the fact that it is parfocal with the rest of my TV eyepieces.

In a 76mm f6.6 APO refractor, stars are tack sharp to the edge. However, you may have to move your eyeball to see the edge because of the short eyerelief.

Pros:
- superb sharpness and contrast for such a complex eyepiece
- excellent fit and finish, even when made in Taiwan.
- size and parfocal with T5's and T6's makes it ideal
for binoviewing or perserving balance on your dob.

Cons:
- eyerelief is limited and most suited for non-glass wearers.
- Price is a bit steep (in CDN dollars it's almost $600!!)
- convex field lens is awfully close to the bottom of the barrel. Needs to be capped all the time when not in use.

I just love this EP!!

Overall Rating: 10
Optics:10 Value:8
Weight: 10 (Trustworthy Vote)
Date: 08/16/2002 03:49:58 am PST
By: schung
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=125872

&gt;I use a 16mm Type II on my 16-inch Newtonian.  See my web page:- http://www.chess-dictionary-chesmayne.net/Index-Constellations.htm --- for an extensive discussion of my telescope(s) and accessories?  I also have the 9mm Type I as well and a 2-inch Tele-Vue coma corrector.
Yes - the 16mm is really excellent - pricy - but worth it due to the 82d wide-field and the flat-field when used with the coma corrector.  Now - how much did you say I needed for a Denkmeir binocular viewer!

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