Originally posted by selar Its only a plane thats in perfect focus where points are really rendered as points, everything else is out of focus and the points are really rendered as out of focus circles. So sensor size does matter for depth of field.
Actually no. If you're looking at percent of the frame, yes but that is not actually how you measure DOF.
Its often misunderstood or mis-represented, but film/sensor size is not an aspect that affects DOF.
Crop sensor does just that... it crops.
Naturally, getting in closer to the in-focus area around the plane of focus will make the DOF appear larger within the frame... but in reality the same amount of the subject will be in focus.
Well, when talking about circles of confusion... sure there is a difference almost insignificantly and impreceptively... certainly not enough to cause someone to go from crop to FF to get a different DOF like most people talk about.