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-   -   Dark band in upper part image, with short shutter speeds (https://www.dvinfo.net/forum/sony-alpha-mirrorless-dslr/527232-dark-band-upper-part-image-short-shutter-speeds.html)

Luc De Wandel March 11th, 2015 10:07 AM

Dark band in upper part image, with short shutter speeds
 
2 Attachment(s)
I noticed something very awkward with my Sony A7: when using a vintage Nikon lens (any older manual Nikkor), with an adapter, and a very short shutter speed (1/4000th of a second), I get a very dark band in top of the image (picture 1). This happens only with short shutter speeds, if I choose a longer exposure, for example 1/400th, the banding is gone (picture 2). With the Zeiss 24-70 it is also gone. Anyone have any idea what could cause this?

Matt Bigwood March 13th, 2015 03:00 AM

Re: Dark band in upper part image, with short shutter speeds
 
I just found this last weekend - I was shooting with a Nikon 70-300 on my A7s at 1/8000 second and had exactly the same issue. I will post a photo later.

Matt Bigwood March 13th, 2015 06:35 AM

Re: Dark band in upper part image, with short shutter speeds
 
2 Attachment(s)
Here are a couple of images with the dark band - shot at 1/5000 sec. The band doesn't appear on pictures taken at a slower shutter speed. The lens was a Nikon 70-300 zoom with a cheap tube NEX- Nikon adapter.


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