...when I think of M lenses, I think of the tiny primes.
Joe
This is also what I think of when we talk about M lenses. M35-70 is not typical, it is chunky, short but quite heavy. And Pentax must be joking when they say the 2000mm mirror lens is a M lens! Although I think their definition of a M lens is that they are smaller than most other brands' lenses with same foc. lenght and aperture.
Andre

