Originally posted by luftfluss I find the DA21 to be an ideal partner for the K-01..
I definitely agree-- it makes the K-01 almost a point-and-shoot, with the ideal focal length. Works better as a walk-around lens than the DA 40.
Originally posted by Biro I picked up a DA 18-55 II just to use on the K-01 in case I decide I really need a zoom in a given situation.
This is what I did also-- I got a DA 18-55 WR to be a lightweight zoom for the K-01. I find having a longer and heavier zoom defeats the purpose of the K-01, and without a substantial grip, the camera balance is all wrong. The K-01 really needs to be used with some nice prime lenses.
Another nice match for the K-01 is the smc-F 35-70. Here's what it looks like:
https://www.pentaxforums.com/forums/138-pentax-k-01/261381-k-01-lens-photos-2.html#post2814002