I'll add to recommending the P30T. ( I also have the MX as well as others). It is a really nice Pentax body that shoots in P, A and M modes, has a regular speed dial and the best bit for me is that it has an exposure lock button!
Heads up - it is DX auto film speed setting only.
---------- Post added 11-19-20 at 05:35 PM ----------
Originally posted by nickthetasmaniac I don't think the K2 has been mentioned? All the ergonomics and functionality of the KX (mirror lock up, depth of field preview, shutter speed dial etc.) but with the addition of Av.
Downsides are that it's bigger than the M series and has limited capability without batteries.
I love my K2, I think it is one of the best Pentax bodies. But the OP asked for small/light weight and it is one of the bigger bodies. But really in the scheme of things, it's not THAT munch bigger..
It does have the best focusing screen out of all my Pentaxes though.