Re: [Leica] Digital and lens resolution was Re: APD out

[Andrew Schroter <schroter@optonline.net>]

Schneider has changed their site and this link no longer works.  The page:

http://www.schneideroptics.com/info/white_papers/optics_for_digital_photogra
phy.pdf

contains a white paper on Optics for Digital Photography.  I don't know if
it's the same paper.
Andy

- ----- Original Message -----
From: "David Prakel" <dgp@btconnect.com>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Sunday, February 10, 2002 2:26 AM
Subject: [Leica] Digital and lens resolution was Re: APD out


> >> Digital in the R line would be a good excuse to sell more lenses.
> >
> > Yes, if using the same lens mount.
>
> The LUG has carried a lot of messages about wished-for digital cameras for
> the R and M systems. And how Leica lenses would be great with digital. As
> they stand Leica lenses are simply too high resolution to be suitable for
> digital imaging.
>
> If you look at any of the 'converted' 35mm SLRs that are used as platforms
> for digital cameras - I'm thinking principally of the Kodak 520/560 and
760
> Canon/Nikon rebuilds - you will see that they have a so-called
> 'anti-aliasing' filter in the throat of the the lens mount. This acts as a
> replaceable dust filter, as a 'hot mirror' filter to cut down IR and UV
but
> most importantly as a blurring filter to limit the lens resolution to
about
> 40lpm max.
>
> On the other-hand colour fringing performance is more important with
digital
> than with conventional film - Leica is OK on that score!
>
> Don't take my word for it - Schneider has published an excellent white
paper
> on why high resolution lenses are unsuited to digital applications.
>
> www.schneideroptics.com/white/kina.htm
>
> --
> David G Prakel
>
> --
> To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html

- --
To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html