Archived posting to the Leica Users Group, 2006/12/22

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
Subject: [Leica] Filter for the M8 B+W 486
From: telyt at earthlink.net (Douglas Herr)
Date: Fri Dec 22 05:18:54 2006
References: <00a401c72578$c8806770$6401a8c0@FrankDell2> <84A6F051-E990-4C56-A321-85A8A31EDDD4@ciudad.com.ar>
 
On Dec 21, 2006, at 9:30 PM, Eduardo Albesi wrote:

> Don't you think an effective approach would be to provide a hot mirror 
> layer on one of the optical surfaces *inside* the lenses, at a point 
> where the light rays incidence angles are more parallel to the axis of 
> the optical system and where internal reflections can be optimally 
> minimized?

The only disadvantage I can see is that the lens would not be suitable 
for IR photography.  But then my guess is worth about as much as all 
the others here and could be invalidated with a single real-world 
experiment.

Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com
In reply to: Message from red735i at earthlink.net (Frank Filippone) ([Leica] Filter for the M8 B+W 486)
Message from eduardoalbesi at ciudad.com.ar (Eduardo Albesi) ([Leica] Filter for the M8 B+W 486)