Originally posted by Frogfish I have a 43 Ltd and I have to say I'm not sure how much faster you want to focus ! It seems damn fast to me. Maybe I'm missing out on something !
It's incredibly sharp.
We did an informal test with a K5 body, and the difference in focusing speed between the 43 and the 40 was noticeable. Colloquially, you could observe the focusing time of the 43 (probably measurable in quarter-seconds) while the 40 was nearly instantaneous, and would be difficult to measure.
Also observed: the FA 43 looks quite cool with a DA 40 lens hood. :-)