Fred wrote:
Sometimes the lens defects in the slide projector's lens can make a good slide (taken with a good camera lens) look bad. So, do you know for sure that the slide image itself is soft at the edges? (Have you checked the slide with a loupe?)
You may be right, this could be due to projector. I do not see this behavoir when viewing on the 17" monitor.
I have been right only on very rare occasions, Ramesh, so don't take anything I say too seriously - <g>.
I have had only modest experience with slide projectors (and none recently, and projector lenses may have improved over the past ten years or so). However, when I used to use one on occasion (it was some Kodak model, but I have no idea of the model or of the actual lens it used), field curvature was an annoying problem. If I focused sharply on the center of the image, the edges and corners were out of focus. If I focused on the corners, then the center was out of focus. I usually ended up with a compromise focus point that favored the center quite a bit but gave away a little bit of center sharpness in order to help out a tad in the corners.
Fred, K1FW
