02-22-2012, 05:47 PM
The lenses will produce better images on a newer body, I would not be worrying about that. The image will not degrade.
The mtf of a body-lens system is the mtf of the body X mtf of the lens. If either goes up, the end result will go up as well.
The mtf of a body-lens system is the mtf of the body X mtf of the lens. If either goes up, the end result will go up as well.