I have lots of DX lenses, and am considering going to full frame. I was under the impression that a FF body like the D700 would show an incompletely filled frame with a DX lens..e.g. there would be something like a circular spot with the DX-size image, and nothing beyond that. But I've recently been told that the FF bodies auto-detect DX lenses, and crop their sensor size to it's filled completely with the DX image. Does anyone know if that's the case?
#2. "RE: Does D700 "auto detect" DX lenses?" In response to Reply # 0 Wed 27-Jun-12 03:05 PM by briantilley
Yes, the D700 (like all Nikon's FX DSLR's so far) has the option of switching automatically to its DX Crop Mode when a DX Nikkor is mounted.
Note that the auto-switching may not always work with 3rd-party lenses as it relies on the coding of a chip in the lens to tell the camera it's for the DX format. You can always switch manually via the menus
#3. "RE: Does D700 "auto detect" DX lenses?" In response to Reply # 2 Wed 27-Jun-12 11:14 PM by Roland J
I have mine set to show FF all the time... I also have the 'grid' turned on. The inner lines of the grid are exactly the same size as the DX image. I find it useful because a) it gives a good indication of the 'extra' that you get when an FX lens is fitted... & b) When you have a DX lens you can gauge the limits of the lens by seeing what's in the frame & what's out. (Obviously I need to post-crop)