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Equipment Discussions >> Binoculars

pcad
Carpal Tunnel
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Reged: 01/17/05
Posts: 1501
Loc: Connecticut
Re: Undersized prisms - the myth
      06/22/08 10:18 AM

Hi Glenn,

Nice illustration, thanks.

Several times you've mentioned "standard Porro prisms" as opposed to "asymetric Porro prisms". Is the use of asymetric prisms an attempt to correct the problem of "too small prisms"? I imagine that using progressively smaller prisms would reduce the overall prism path length and move the prisms further away from the objectives. Am I on the right track, or am I missing something?

Peter

--------------------
Peter

Telescopes 25 - 318 mm
Binoculars 15 - 88 mm
Microscope 50x - 1000x

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Entire thread
Subject Posted by Posted on
* Undersized prisms - the myth GlennLeDrew 06/18/08 08:19 PM
. * Re: Undersized prisms - the myth SaberScorpX   06/19/08 02:18 PM
. * Re: Undersized prisms - the myth GlennLeDrew   06/19/08 07:52 PM
. * Re: Undersized prisms - the myth Shortymx   06/19/08 08:22 PM
. * Re: Undersized prisms - the myth pcad   06/19/08 11:03 PM
. * Re: Undersized prisms - the myth EdZModerator   06/23/08 10:59 AM
. * Re: Undersized prisms - the myth sftonkin   06/20/08 11:05 AM
. * Re: Undersized prisms - the myth GlennLeDrew   06/21/08 10:06 PM
. * Re: Undersized prisms - the myth pcad   06/22/08 10:18 AM
. * Re: Undersized prisms - the myth GlennLeDrew   06/22/08 07:15 PM
. * Re: Undersized prisms - the myth KennyJ   06/22/08 10:24 AM
. * Re: Undersized prisms - the myth EdZModerator   06/18/08 08:42 PM
. * Re: Undersized prisms - the myth GlennLeDrew   06/18/08 09:28 PM
. * Re: Undersized prisms - the myth pcad   06/18/08 10:08 PM
. * Re: Undersized prisms - the myth EdZModerator   06/18/08 10:34 PM
. * Re: Undersized prisms - the myth GlennLeDrew   06/19/08 12:25 AM
. * Re: Undersized prisms - the myth EdZModerator   06/19/08 10:00 AM
. * Re: Undersized prisms - the myth ronharper   06/19/08 01:26 AM
. * Re: Undersized prisms - the myth GlennLeDrew   06/19/08 04:41 AM
. * Re: Undersized prisms - the myth pcad   06/19/08 09:10 AM
. * Re: Undersized prisms - the myth EdZModerator   06/19/08 09:24 AM
. * Re: Undersized prisms - the myth pcad   06/19/08 09:33 AM
. * Re: Undersized prisms - the myth EdZModerator   06/18/08 10:02 PM

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