Originally posted by orly_andico I fail to see the downside with the D7000. Nikon primes are cheap (e.g. the highly rated 180mm f/2.8 ED can be had for $450.. try to find something similar in Pentax-land).
And the D7000 can meter even with their old manual focus lenses (something no Pentax DSLR can do). I find it funny that Pentax talks about all the millions of manual focus Pentax glass, but can't meter properly. My (old new) Canon 40D can meter much more accurately than my K20D with screw-mount glass! and the D7000 has the aperture-coupling cam so it can sense the aperture on their old glass (they do talk about the 24 million Nikkors out there). that aperture cam is something that disappeared from Pentax SLR's in the 1990's with the crippled KAF2 mount.
no matter how highly rated the 180mm/2.8 is, it could match the A* 200/4 which is a topnotch lens.
just in case you don't know, not all Nikon manual lenses fit nor can be adapted on the current Nikon mount without having serious or complex surgical procedure. and you can't mount M42 lenses without some distance.
as far as metering is concerned, basing on the dpreview findings, the D7000 seems to have a problem with metering rather than the K-5. there are some issues that were mentioned about the D7000 but the things that I don't like about is the lack of SR for manual focus lens, less appealing and blotchy noises at higher ISOs compared to the K-5, and the missing and ever helpful pixel mapping feature that comes handy with the K-5. you don't want your D7000 to get serviced every 4 months just for the annoying stucked sensor pixels that shows on the images.