What is Pentax waiting for??

Rod McD wrote:

Hi Johnathon,

I'm a K5 user with a few 645 lenses left over from my film days. I don't understand the argument that your 645 150mm lens will give the FOV of a 390mm lens on an APSC camera like the K01. Perhaps I've misunderstood...... Surely a 150mm lens is a 150mm lens? It's only the image circles that vary in diameter with the intended format. Crop factors are relative to another format. APSC has a 1.5X FF crop factor and any 150mm lens will give a FOV on an APSC sensor the same as a 225mm lens on FF? Not so?

Thx Rod