Originally posted by Pål Jensen I'm pretty sure I have heard about a D-FA* 24/1.4 somewhere....
From my connections there has been mention of a sub f/2 20mm ish prime incoming. A refresh of the FA limited lenses is rather unlikely, I think Pentax will be aiming for
NEW lenses rather than making minor improvements. The an AF version of the A* 135mm f/1.8 would be a
killer lens on the K-1, though some of the optical shortcomings* of that lens could be remedied with the use of ED glass. Now that I think of it, speaking of top end glass from Pentax, the FA*200mm f/4 [IF] ED Macro and 250-600mm [IF] ED f/5.6 would be safe bets. Internally focusing lenses are particularly well suited to be fitted with Ultrasonic autofocus motors.
* The A135mm f/1.8 has issues with purple fringing and substantial LoCa to be competitive against the fast Sigma/Sony 135mm and Nikkor 200mm f/2 the optical design should be improved to eliminate these issues.