|self portrait with mirrors|
I have another white K-01 body and recently I stuck the Sigma 28-90mm 1:2 'macro' lens on it. Generally it's fast to focus (although the K-01 CDAF is not swift at all times) and it is a sharp lens.
I have found that 1:2 satisfies my closeup needs quite nicely and this is a $30 lens that does the job very well.
I may be moving the K-01 soon to finance a K-3 body - and I'll miss it again.