Question about Cameras
I recently purchased a B+W ND 3.0-1000X to mount on my Pentax K20D for taking extended time-exposure shots of various subjects. I've enclosed an image from a recent shoot. Almost all shots have strange banding artifacts with exposures around 30 seconds. It is most pronounced in vertical images but is also present in horizontal photos as well. I do not believe that there is a problem with the B+W filter, but thought one of your photography experts might know what is going on. There was fairly strong side-lighting and if I had been able to see these artifacts on my LCD, I would have tried to block some of that light. Any thoughts?
Jeff Clay email@example.com
Today i tried the filter for the first time and i got the same result... i think its because of using a very small appreture like f22... i searched the net for images that this filter was used in and most of them used f8 to 14... I am not very sure of this but i am planning to try it tomorrow and see by myself...
best of luck
Posted on Sep 26, 2008
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Posted on Jan 02, 2017
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