Originally posted by Blue The FA 20/2.8 isn't a huge lens. Its a myth that Pentax lenses have to be huge to cover full frame. Look at the FA 35/2 and FA 50/1.4 or the F 28/2.8. Non of those are huge lenses. The FA 43 LTD and 77 LTD are relatively compact as well. The F 35-70/3.5-4.5 is incredibly compact.
Totally agree, which is why I'd rather just wait for a Pentax FF (or even just continue to use a Pentax APS-C).
I'm always a bit irritated by those who make the comment that existing lenses are not FF ready.
Totally untrue as my own use of the Takumars on FF has shown to myself.
I tried the latest and greatest 5DIII with 24-75 at their showroom. What a clunky beast.
Made to impress though with its size and machine gun like loud shutter on multi-frame mode.
I can see why it sells to those who like it this way.