I have a question for you more experienced guys. I dare say that it will be the first of many.
I have been a black and white film user for many years and, on my other cameras, I have a small selection of Lee filters. Because of the size of Lee filters I am thinking that maybe some screw in filters might be a better option for the M6. My quastion is this, how do i know what the filter thread size is on my 50mm Summicron? There are no markings as I have come to expect from Japanese manufacturers, though the inside of the lens cap says A42 - and I guess that the diameter of the lens is about 42mm-ish.
Any help greatly appreciated.