The 75 is in excellent cosmetic and functional condition with front and rear caps. The 50 is in minty condition with caps and original box. I would like to trade for a Noctilux f/.95. Second option would be, trading my 75 Summilux for a Noctilux f/1 (I need to know which version) and money difference. If interested, pm me to discuss condition, price difference, if any, and photos of items.