The principals are the same. If you use an old lens on a new body or vice versa you will lose the autofocus function. Also many digital cameras have smaller sensors (known as cropped). So a 50mm lens on your SLR will be about a 78mm on your DSLR because the image is being projected onto a smaller space. This may be a benefit if you use long lenses for sport / wildlife but not if you generally use fish eye! You can now buy full frame DSLRs that are equivalent to 35mm so the lens would not alter. Also lenses are constantly evolving with better glass to prevent chromic abberation, etc and with built in image stabilisation, etc.
First answer by ID1438480611. Last edit by ID1438480611. Question popularity: 11 [recommend question]




