[Leica] Strange M8 artifact

[grduprey at mchsi.com (grduprey@mchsi.com)]

must be the fall i took and the following extreme pain, but the photo looks 
ok to me.

gene

-------------- Original message from "Ken Iisaka" <ken@iisaka.org>: 
-------------- 


> I recently encountered a strange M8 imaging artifact in which two halves 
> of the 
> sensor appear to have different sensitivity characteristics. 
> 
> http://gallery.leica-users.org/v/kiisaka/LeicaM8/RachelSirois.jpg.html 
> 
> In this photograph (cropped slightly from the original), the shadow level 
> is 
> slightly higher, and slightly more magenta in the bottom half (or the 
> right 
> half) of the sensor than the top or left half. If you look using a 
> carefully 
> adjusted monitor, you will see the line just below the pendant, which is 
> exactly 
> 1952 pixels (3904 / 2) from the top, exactly at the middle of the sensor, 
> in the 
> original. 
> 
> Has anyone noted anything like this? My hypothesis is that the overblown 
> areas 
> from the window is affecting the circuitry for the one half of the sensor. 
> This 
> problem was observed in three nearly identical shots that were taken 
> within 10 
> seconds of each other. 
> 
> The camera was M8, firmware 1.102, Summilux-M 35mm ASPH, B&W 486 filter 
> 
> I will conduct more tests to see if I can replicate this problem. 
> 
> 
> 
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