Originally posted by Rainy Day Haha, those cheapie ones look just about all I need. After all, all I want it for is long exposures.
Regarding that Pentax CS-205, the official list of compatible cameras is as follows...
*istD, *istDS, *istDS2, *istDL, *istDL2, K110D, K100D, K100D Super, K200D, K10D, K20D
Note a distinct lack of K-7 (as well as K-5, KR, K-X...) I don't know whether it would still work with those newer cameras, but that particular one seems to be a bit old...
If it's compatible with the K10/K20, it'll be compatible with K-5 and (I assume) K-7.
Pinout never changed - and I can confirm I've used the same DIY release with the K10, K20, and K-5.