When I bought my F4, my sole criteria was for the built in diopter ( and it had to use my existent Nikon lenses.) I also was aging and could no longer use my unmodified camera VF. At first, I got an 8008 for AF. Then I realized that I was better at focusing then the 8008. I never used the AF too much. Then I got the F4, just for the diopter adjustment. Good choice as far as I am concerned.....great camera. It is quite amazing to be able to change the diopter adjustment on the fly if your eyes are not stable..... Frank Filippone red735i@xxxxxxxxxxxxx You're right Lloyd, that is a simple fact of aging that requires us to adjust to the use of glasses, and that we must "get over it", which we all do. My own eyes are far-sighted, so I must use reading glasses for close work. For spotting I bought one of those visors with magnifiers like a jeweler might use. (Mine is a cheap version, made of plastic). But it works pretty well. The spot and the tip of the brush are nicely magnified so that I can really get the Spotone where I want it. John Meyers ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.