Archived posting to the Leica Users Group, 2010/09/07

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Subject: [Leica] is this a bad pixel? (the bad kind of red dot)
From: jbm at jbm.org (Jeff Moore)
Date: Tue, 7 Sep 2010 20:38:03 -0400
References: <4C86B3A3.2010001@panix.com> <4C86C7C6.4080705@panix.com>

2010-09-07-19:16:22 Rei Shinozuka:
>  1. I should have noted, the camera in question that produced the
> images is a Leica M9.
> 2. also, RAW pictures show the same anomaly.
> 3. finally, i can just shoot f16 1/4000 second and the image is all
> black, but the red pixel appears. to me, that rules out dust or
> reflections.

Adobe Camera Raw (and thus either Lightroom or Photoshop, as long as
you're shooting raw) is *supposed* to do some sort of automagical
bad-pixel identification and hiding:

http://forums.adobe.com/message/3067006

...but I have no idea what the mechanism is under the hood, and what
circumstances might make it not work as hoped.

Which would be nice to know, I think.

 -Jeff


Replies: Reply from photo.forrest at earthlink.net (Phil) ([Leica] is this a bad pixel? (the bad kind of red dot))
In reply to: Message from shino at panix.com (Rei Shinozuka) ([Leica] is this a bad pixel? (the bad kind of red dot))
Message from shino at panix.com (Rei Shinozuka) ([Leica] is this a bad pixel? (the bad kind of red dot))