Quote:
Originally Posted by silv
I would be interested in the reasons, though. And I'm sure others will be, too.
Why are these particular ones good for newtonian binoculars?
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For a 20" F/5 binocular , the sweet spot is around a 15 to 17mm eyepiece.
It delivers the best compromise of resolution, field contrast and field of view.
The HW 17's give the same AFOV as 22 Naglers, better contrast, better correction and a more accessible exit pupil than the greatly revered Tele Vue Ethos. They also come with a a supplementary field lens that converts them to a 14mm eyepiece.
The eyepiece barrel is also just small enough such that the bridge of your nose doesn't make things too uncomfortable.
best
~c