FX lenses on a Nikon D3200
QI have a Nikon D3200, which is obviously a crop sensor. I’m tempted to rent lenses rather than buy expensive ones, so my question is (as I am limited on DX lenses) what are the dis/advantages of an FX lens on a DX body? Charlotte Moon
AIn practice, there are few problems in using an FX lens on a DX body. On the plus side, the sensor crop means you avoid seeing the furthermost FX frame corners, which is where most of the lens imperfections will make themselves known. There is a theoretical risk of unwanted internal reflections inside the mirror box, because the projected image circle is substantially greater than that required to cover the DX sensor, but this technical point will usually only become an issue in extreme circumstances. Some FX lenses of the same focal length and aperture may be slightly heavier than their DX equivalents because of their premium build quality. Bulk and weight also become an issue if you go for the ‘faster’ (larger maximum aperture) lenses, of which there is a better choice in the range of FX lenses.