Carl rl wrote:
Brief and to the point, which option is considered to be best for IQ on a FF camera: a 1.4x teleconverter or switching to DX mode using an FX lens. I am negating the minor difference between the 1.4x and typical Nikon crop factor of 1.5.
TC. Very few reasons to use DX crop on a full frame camera. Though if you have a very sharp DX lens, and you want to lessen your load, there are some situations where it can be useful, but I would override the auto crop and let the lens project the image to the full sensor. You will get a circle, or an image that is a circle with the top and bottom sliced off. Some DX lenses actually nearly fill the FF sensor. In any case, it will give you more cropping alternatives.