Archived posting to the Leica Users Group, 2010/10/27

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Subject: [Leica] T Stops
From: durling at cox.net (durling at cox.net)
Date: Wed, 27 Oct 2010 10:28:47 -0400

I'm not sure what the problem is.  There is some light loss due to an
optical effect.  The sensor's gain is increased to compensate for this. 
This lets the imaging chain be exposed in a predictable way.  As long as
the noise level is within the acceptable range then it should be ok. 
Obviously the cameras at the top of the chart perform better and those seem
to be the more expensive full-frame models.  The way sensors are improving
noise levels overall seem to be getting lower all the time, at least for
the decently sized sensors.

Mike Durling

Original Message:
-----------------
From: Jayanand Govindaraj jayanand at gmail.com
Date: Wed, 27 Oct 2010 19:33:05 +0530
To: lug at leica-users.org
Subject: [Leica] T Stops


Interesting study:

http://www.luminous-landscape.com/essays/an_open_letter_to_the_major_camera_
manufacturers.shtml

Cheers
Jayanand

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Replies: Reply from henningw at archiphoto.com (Henning Wulff) ([Leica] T Stops)