.
Really, I'm trying to nip it in the bud, not expand it - so I'm working
with you here!
DOF:
1. For an equivalent field of view, the small-sensor camera has at least 1.5x
MORE depth of field than a full-frame camera would have - when the focus
distance is significantly less then the hyperfocal distance (but the full-frame
format need a lens with 1.5x the focal length to give the same view).
2. Using the same lens on a small-sensor camera and a full-frame camera, the
small-sensor image has 1.5x LESS depth of field than the full-frame image
would have (but they would be different images since the field of view would be
different)
3. If you use the same lens on a small-sensor camera and a full-frame camera
and crop the full-frame image to give the same view as the digital image, the
depth of field is IDENTICAL
4. If you use the same lens on a small-sensor camera and a full-frame camera,
then shoot from different distances so that the view is the same, the small-
sensor image will have 1.5x MORE DOF then the film image.
5. Close to the hyperfocal distance, the small-sensor camera has a much more
than 1.5x the DOF of a full-frame camera. The hyperfocal distance of the small-
sensor camera is 1.5x less than that of a full-frame camera.
.