In my adventure to disassemble and relube a postwar Opton Sonnar in a Contax mount, I notice that it would be exceedingly easy to modify the aperture to open a tiny bit larger (3.5mm larger diameter) and a tiny bit smaller. I'm not in any hurry to change a lens I'm pretty happy with, but I do like tiny apertures. Any thoughts out there?
You'll get extra depth of field, but I think you may find that sharpness drops off as you stop it down past its current limits. Certainly worth an experiment, but keep it reversible in case you're not happy with the results.
