How Much Zoom Is 200Mm?
How Much Zoom Is 200Mm? So, a 200mm lens on a 35mm frame is about a 4x “zoom” to your eyes. On the 20D with the 1.6 crop factor, 200mm is about a 6.4x “zoom” ((200 x 1.6) / 50). How many mm is 20x zoom? At an aspect ratio of 4:3, the Canon 35