I currently have an Olympus 35SP rangefinder and an OM4Ti SLR. I use the OM4Ti mainly with its 50mm F/1.8 prime. In terms of sharpness, contrast and definition, how do you reckon the quality of the images my current kit can produce (say on slide film) would compare with a modern film SLR & prime lens? I know there are lots of different factors, but was just wondering how the SP & OM lenses compared with say a modern 40mm/50mm prime from such as Nikon or Canon? The reason I ask is I now find have problems focussing the MF cameras because of my own less-than-brilliant eyesight, and would consider looking round for a decent AF SLR with a prime lens. The trouble is I've not looked at modern cameras for so long now and I'm not sure where to start to get something as sharp & contrasty. I don't know if advances in technology over the years means that all new lenses are basically so good these days that virtually anything would easily match the quality I currently get, or worryingly if the opposite is true?