Archived posting to the Leica Users Group, 2007/03/09

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Subject: [Leica] OT - Sigma DP1 - 14 or 4.7 MP?
From: leica at screengang.com (Didier Ludwig)
Date: Fri Mar 9 03:23:02 2007
References: <20070308155449.55DE12FC09@donald.hostspirit.ch> <91A97B33-4FAA-4868-9ED4-E8DE3D1BEE2C@pandora.be> <45F09FF8.6060802@gmx.de>
 
Douglas
Of course the 14MP is a kind of marketing thing. But in fact, it's neither 
4.7 nor 14 MP. The way pixels are usually counted does not work for that 
layered foveon sensor. But what can be said is that it's dynamic range is 
much superior to any 4.7MP CCD sensor. Find more about it here 
<http://de.wikipedia.org/wiki/Foveon-X3-Sensor>

Didier



>The Foveon sensor is 3 x 4.7 MP, so the way I see it,  it records 3 colour 
>layers with a 
>sum total of 14 MP, processes them and outputs a 4.7 MP file.
>Or have I got this wrong? The 14MP tag seems to be just marketing hype to 
>me.
>Douglas
>
>
><http://www.dpreview.com/news/0703/07030807sigmadp1.asp>
In reply to: Message from leica at screengang.com (Didier Ludwig) ([Leica] OT - Sigma DP1 28mm camera released)
Message from philippe.orlent at pandora.be (Philippe Orlent) ([Leica] OT - Sigma DP1 28mm camera released)
Message from douglas.sharp at gmx.de (Douglas Sharp) ([Leica] OT - Sigma DP1 - 14 or 4.7 MP?)