Archived posting to the Leica Users Group, 2006/06/15

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Subject: [Leica] Digital Leica M
From: henningw at archiphoto.com (Henning Wulff)
Date: Thu Jun 15 11:00:37 2006
References: <2B102DE3F7C92A4798E4F184BB5EB50B1EA21A@gsmbnmp17es.firmwide.corp.gs.com>

At 1:27 PM -0400 6/15/06, Francis, Michael wrote:
>Doesn't correcting for light fall off imply that the information at the
>periphery of the image will be at a higher effective ISO and hence far
>more noisy than the central part? So unless Leica is able to squeeze
>lower noise out of the sensor (assuming a 1 stop falloff) an ISO 400
>image would only be ISO 400 in the middle and ISO 800 at the periphery
>... and even the Canon's struggle with noise when they are that slow. I
>suspect that new 'digital optimized' lenses will be a requirement for
>high ISO shooting at wide angles. Time will tell and I hope they get it
>right as I'd love to be able to use my M Leica stuff for digital.
>
>Mike
>
>

Yes, you lose dynamic range. You do on the Epson, you will on the DM. 
In practice it isn't quite as big a deal as it sounds (at least on 
the Epson), and I don't think it will be a killer on the D-M either.

-- 
    *            Henning J. Wulff
   /|\      Wulff Photography & Design
  /###\   mailto:henningw@archiphoto.com
  |[ ]|     http://www.archiphoto.com

In reply to: Message from michael.francis at gs.com (Francis, Michael) ([Leica] Digital Leica M)