Not sure where he's getting his DoF numbers; they seem large. In fact, they are even greater than what DoFMaster reports. And in my experience, DoFMaster is liberal.
The one point of (his) confusion I can clarify: a 50mm lens is a 50mm lens, either on an APS-C or a 35mm body. The only thing that changes, as  jaysonmc posted, is the crop, in other words how much of the image circle the camera records.
In either case, the lens projects the exact same image on the sensor; the differences in DoF are purely due to the way that image is recorded and later magnified. |
