Archived posting to the Leica Users Group, 2004/06/20

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Subject: [Leica] Erwin on the new M-50/1.4 ASPH/digital sensor size question
From: clive.moss at gmail.com (Clive Moss)
Date: Sun Jun 20 18:18:39 2004
References: <BCFB5283.6397%s.dimitrov@charter.net> <00b801c45713$530fb530$4649c33e@sigmafli1cclvg>
 
On Mon, 21 Jun 2004 00:09:58 +0200, animal <s.jessurun95@chello.nl> wrote:
> 
> When the sensor size changes so does the focal length doesn,t it

No, it does not. The lens does not know what the sensor size is. All
that happens with the smaller sensor is that you crop the image
tighter, resulting in a narrower angle of view. To imagine the effect
with film, take any negative you have, and cut it down to the size of
the sensor. That will replicate the effect of the smaller digital
sensor on the image.
-- 
Clive
http://clive.moss.net
Replies: Reply from jls at runbox.com (Jeffery Smith) ([Leica] Erwin on the new M-50/1.4 ASPH/digital sensor sizequestion)
 In reply to: Message from s.dimitrov at charter.net (Slobodan Dimitrov) ([Leica] Erwin on the new M-50/1.4 ASPH)
Message from s.jessurun95 at chello.nl (animal) ([Leica] Erwin on the new M-50/1.4 ASPH/digital sensor size question)