8058Re: [tmboptical] Re: Monocentric eyepiece eye relief?
- Mar 1, 2003the eyepieces will be physical like a Pentax SMC Ortho with 1.25" barrel
----- Original Message -----
From: ronbee77 <ronby@...>
Sent: Saturday, March 01, 2003 7:30 AM
Subject: [tmboptical] Re: Monocentric eyepiece eye relief?
--- In email@example.com, "tmboptical <TMBoptical@a...>"
> 4mm = 3.2mm
> 6mm = 4.8mm
> 8mm = 6.4mm
> 10mm = 8.0mm
> The field of view is 30 degrees. This will give the observer
> a feeling of greater eyerelief than the numbers above. But
> again, we are not going to compromise performance, for a large
> field or 20mm of eyerelief. There are plenty of eyepieces
> on the market that achieve that, but they lack the critical
> contrast of a superior designed and manufactured Monocentric
> eyepiece. I personally have no trouble using the Zeiss Abbe
> 4mm orthoscopic.
> Thomas Back
Oh no, no 5mm?
Will the eyepiece physically be like "cone-like" where the exit pupil
goes like the UO Ortho? I understand this physical design help
greatly with short eye relief?
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