[pure-silver] Re: Large Format Tilt
- From: Helge Nareid <hn.groups@xxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Thu, 29 Nov 2007 20:25:55 +0000
BOB KISS wrote:
Forgot to mention (before Richard pounces)...in reality all of the distances
regarding the lens are measured from the entrance and exit pupils of the
lens which are not necessarily the same as the physical surfaces of the
lens.
You don't need Richard for this.
As a matter of fact, for this kind of calculations, the distances should
be measured from the front and rear nodal points of the lens, which are
rarely the same as the physical surfaces _nor_ the entrance and exit
pupils of the lens.
- Regards
Helge Nareid
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