Hi boys and gals
I had possibility to try K20d demo brought from Dubai, it had only 0.20 firmware, I couldn't even select iso3200 with this fw version, so only 1600iso files:
link to high iso dngs
IMHO, 1600iso of K20D is .. em.. "mind blowing"
if you take into account that is 15mpx aps-c and if you look into 100%crops they are very similar to K10D iso500-640 and noise appears none intrusive, film like. JPG high iso noise is indeed different story, I believe due to early firmware.
Body was mounted with 31 limited, but AF was as quick as with some DA lens, and 31 limited is not the quickest lens in AF
AF motor is on a higher note if to compare with K10D. Trap focus feature is very nice, when it is enabled in AF.C continuous shooting is at 3fps and AF is very quick
Mirror is nicely damped.
So be prepared to hand out Your wallet:
Pentax_k20d_film1.gif - K20D burst of 25 frames in 1600iso by salesperson
one of the frames is imgp0177.jpg.