If my vision at 1 meter is reasonable with glasses on does that mean that no diopter correction is needed if I wear glasses when shooting? I notice some manuals say that the diopter can be adjusted until the focusing squares appear sharp and some non-Canon manuals say to take the lens off and point the camera to th sky or a white wall and to adjust the diopter with glasses on or off until the viewfinder info readouts are sharp. What about autofocusing on a contasty object in bright light and then turning the diopter adjustment with glasses on and seeing if it gets any sharper? I am not sure what approach to take to see if I would benefit from further adjustment with my glasses left on.
Howard << I've solved this problem for me. I'm 64 so my ability to focus on different distances is somewhat limited. My eyesight is corrected by wearing bifocals which correct astigmatism, and allow good vision at infinity and at about 30-40cm. SLR camera viewfinders are normally set at 1m away (-1dioptre) which is where my spectacle corrected sight is quite poor. (Prices on supermarket shelves etc.!) I need to wear my bifocals when using my cameras. My solution is to fit eyesight dioptres moving the viewfinder image from the 1m position to closer to infinity. On my Canon cameras I've found a -0.5 dioptre satisfactory >> * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
