Originally posted by Scorpio71GR WPRESTO I am pretty sure we purchased ours from the same seller. It is too bad the newer versions are not made in K mount.
FYI: The two later versions should have better AF* and somewhat better IQ, but they are about 30% heavier and closest focus is only at 70mm, so the maximum reproduction ratio isn't as good (1:3 in the K-mount version; 1:8 in the next version; 1:6.1 in the latest version). Considering the price gap (approximately $600 - $1100 - $1250) I'm not sure the newer versions are more desirable.
*Quicker and quieter, but reliability?