For those of you like me who had no idea what a full-frame camera was, apparently most DSLRs use image sensors that are smaller than a 35mm frame, so if you try

For those of you like me who had no idea what a full-frame camera was, apparently most DSLRs use image sensors that are smaller than a 35mm frame, so if you try to use a 35mm lens on one of these cameras part of the lens's image circle will be cropped off. Quality is also compromised. Full-frame cameras can also more effectively use wide-angle lenses.