Archived posting to the Leica Users Group, 2007/04/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I didn't see it until I went full screen. I'll bet its a reflection off the window because it appears to have the window pane iine in it. Tom Schofield On Apr 25, 2007, at 12:23 PM, Ken Iisaka wrote: > 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. > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information