I have a D600 and a 28-300mm attached to it.
Couple of weeks ago I decided to test its DX mode. So, I changed FX mode to DX and shot some pictures.
When I imported my images into ViewNX 2, they looked just fine until I hit "RAW" button. As soon as I hit the button and the process finished, a white diagonal line appeared starting from the top left corner all the way down to mid-bottom of the frame. This occurred at any focal length & light conditions when images shot on DX mode. Images shot on FX mode are perfectly fine.
I opened up the same (RAW) images with Microsoft products and the line appeared at the same exact location as soon as MS products finalized processing these RAW images.
However, when I used Lightroom 4, these lines did not appear and all the images looked just fine.
If I convert/export these RAW images to TIFF or JPEG by using Nikon's ViewNX software, converted images also have these lines. Images converted by Lightroom 4 however do not have the lines.
So I assumed that this issue is not sensor/hardware related, but there is an issue with Nikon's RAW codecs (I believe Microsoft also using the same RAW codecs).
The issue does not bother much me since I use Lightroom for pretty much everything but I am also curious why this is happening and wandering if anyone can help me to understand what's going on here?
I wanted to upload the same JPEG image converted by ViewNX 2 and Lightroom so that you can see the problem but I just could not figure out how to attach these files, sorry I am new here.
I hope I was able to describe the issue clearly here. Oh by the way, lines appear even without tweaking images and I use the latest Nikon RAW codecs.
Thanks for the help & suggestions in advance!