I use this remote with my Pentax K100D DSLR. I believe this works with other Pentax models as well (you may want to check the Pentax website to check if your equipment is compatible) This remote allows me to take pictures much easier than using a self timer (when I want to be included in the picture). It is very simple to set up (just set the camera's function switch to select "remote". The K100 has two settings, one has a 2 second delay and the other setting is instant. The only negative I can mention on this product is that it is too small so it is very easy to misplace. Overall it just works great and it is also very reasonably priced.