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Sensor
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Just wondering if anybody knows of or has experienced the following, and if so could tell whats wrong?
When taking shots of relatively fast shutter speeds everything is fine, however when I shoot with longer shutter speeds of about 10 minutes I start to get vignetting but in the opposite sense (white light) in the top corners.
As the shutter speeds become longer this spreads further into the photograph and at 30 minute exposures i end up with white on the top corners as that fades down into the frame?I have a UV filter on but that was just for protection of the lens glass more than anything else?
It is is nighttime shots im taking, i first thought of backscatter but i was in the middle of the countryside and the moon wasnt up yet?Hi – I can only then guess this is a problem with the lens then.
Perhaps try another – and compare results.
By a process of elimination you should find where the fault is.
bren
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