Originally posted by butangmucat Why no one makes this for the K-S2?
Lots of cheap third-party grips appeared for the K-7/K-5 probably because they could just reverse engineer/copy the design and electrical layout of the Pentax grip. Cameras like the K-x, K-r, K-50, K-30, K-S2 etc had no original Pentax grips to clone, so to make a third-party grip would need some work. It might have been considered more trouble than it's worth, probably, for a small-market share brand like Pentax.
Some Pentax users have, however, made their own grips for cameras like the K-x - pic related,
from this page:
and there have been a few more like that for the K-x and K-30 too, I think. Similar DIY things are probably possible with the K-S2.