Quote Originally Posted by PentaxBronica View Post
If we're going that route then a Pentax MX and 40mm "pancake" lens would be ideal. It will fit in a coat pocket, which is handy if the weather isn't behaving.
Zeiss made a 45mm f/2.8 pancake lens for the Contax also. I guess it all depends on how small the OP wants to go.