Concur with all the positive comments on the ZM; I finished putting a roll through it this week, the first film I shot since cataract surgery. In the past I must have used my reading glasses when shooting with it (purchased the body used). I had bifocals with me when shooting this latest roll and found that I had to tilt my glasses up so I could focus using the closeup lens part of my glasses - very cumbersome. Then, on impulse I took a look at the eyepiece and attempted to unscrew what I though could be a screw-in diopter lens; It screwed right out; now I can focus with my normal uncorrected vision, i.e., without glasses.