Lots of good food for thought in this thread- and of course plenty to drool over, too. I could not resist. Here are some of my working kit. First up, M3 dressed in black lizard skin from cameraleather- a great cover with good feel, and tough; mounted is Raid's old Canon 50 f1.2 (thought you might appreciate a picture of your olf friend!)
Next is the beater M3 with the vulkanite crumbling off. I keep meaning to order another cover and remove the rest of the vulkanite. It has a black wasserman rewind mounted, and the 50 DR Summicron with IROOA shade.