George Sinos wrote: > Because of the bifocals I fiddle with the diopter correction more than > I'd like. I always focus on something at the far end of the focus > range to set it. I've often wondered if the diopter correction works > for the full focus range. For instance, if I set the diopter > correction when the lens is set at infinity, is it at it's optimum > setting for something focused at a few inches? > > My guess is the correction has more to do with the distance from the > focusing screen to the eyepiece than anything else, but I've never > been sure how it works.
Hi George, My understanding of diopter adjustment is that you should do it with no lens on the camera. Point the body at a bright light source and adjust the diopter so that the engraved lines on the focusing screen are as sharp as possible. Tom Reese
