Phase One Image Corruption When Backlighting

[jeff_singer]

Any time I shoot into the sun as in the following shot, there is a "line" through the image that is clearly a problem with the sensor in this situation.  I've attached two image.  One is a 100% crop of the problem and the other is a low res version of the entire image for frame a of reference.

I saw this on my P25 and now again on my P25+.  Anyone else having this issue?

Jeff

jeff singer | photoBLOG

[vgogolak]

It's called the photo-electric effect.
Those electrons have to go SOME where
:-)
in a CCD they go down the channel used for reading

[Caracalla]

It's called the photo-electric effect.
Those electrons have to go SOME where
:-)
in a CCD they go down the channel used for reading
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[span style=\'font-size:14pt;line-height:100%\']What ever it is called, it should be fixed period!!![/span]

[eronald]

It's called the photo-electric effect.
:-)
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It's all the fault of a guy in some swiss patent office with too much time on his hands

Edmund

[vgogolak]

[span style=\'font-size:14pt;line-height:100%\']What ever it is called, it should be fixed period!!![/span]
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(No need to yell)

unless you want them to change the laws of physics. If you put 10 oz of water in an 8 oz glass, it will spill over.

Here, the electrons just happen to march out in a line  :-)

The only way to fix is by lowering sensitivity, or, aiming away from the sun. Yes, some other sensors behave differently, but I saw the same phenomena when I accidentaly had a mirror in the frame of a flash; it 'spilled' up the row of pixels.

It rarely happens, and may be mitigated with software, but then other factors may suffer; for example speed of readout, or bit depth.

All designs are trades. In general I find backs do pretty well.

[Richowens]

It is also called sensor bloom. It will happen no matter what format you are using. I have seen it on my lowly D70.

 It is more prevalent with longer lenses and wider apertures. The only way I have found to mitigate is to shoot at f16 and smaller. You might also try a ND filter if you need to shoot wider than that.

 Whenever I am in this situation, I use film, usually 35mm but occasionally medium format. I don't shoot for a living, just my own pleasure, so the time scanning is irrelevant .

 Vgogolak is right on, it is all a tradeoff.

 Rich