I'm not sure I've ever seen a screen shot of the image loss experienced when using long telephoto lenses on the 500C/M camera. As I own the 250mm, I decided to upload an image of the focusing screen with the 250mm Sonnar mounted. This occurs only with lenses 250mm and longer and only on the "500" cameras -not the 501 or 503 which use the newer "Gliding Mirror System." Just posting for informational purposes should anyone be considering this camera body/lens combination. Personally, I find that I can live with this issue. I've not yet encountered a situation in which I really needed that part of my composition to be clear in the finder. Anyways, here's the image: