[ad_1] Roger Cicala at LensRentals is on a quest. A quest to MTF everything that moves… or in this case zooms. After putting off zoom lens comparisons as long as possible, Roger finally bit the bullet and published his 70-200mm f/2.8 MTF chart comparison. What’s an MTF Chart? For those of you who need a refresher, MTF charts measure a lens’ contrast and resolution from the center all the way out to the corners, putting hard numbers to a lens’…