I have been using an SLR Pentax K100 camera for about four months now, and I've tried night photography a few times, but even when using a stand it comes out shakey. I heard that you can use something that attaches to the camera so you don't have to touch it when taking the picture, thus messing up the picture, but I can't afford one. Any suggestions for rigging up one myself? Or what would work well with this kind of camera?