I want to take startrail pictures like this with my new K-x:
I took this with my Panasonic Lumix DMC-LZ10. I used a velcro strap to hold the shutter down so it took about 100 30-second pictures in a row, which I later combined using a program called startrails.
I can't use a velcro strap on the K-x because the shutter button is curved down too much. I've seen somewhere on these forums a picture of an accessory that mounts to the hot shoe and holds down the shutter button. I'm not sure if that guy bought it or made it himself. If he bought it, I'm not sure what it would be called to search for it. If I were to make my own, is there any danger of a short circuit if I inserted some metal piece into the hot shoe?
I was looking forward to being able to use bulb mode to take star trail pictures but I discovered it's not as easy as I thought at least in a suburban environment. The pictures overexpose too easily. So I have to find a way to hold the shutter button down for a bunch of 30 second pictures like I did with my other camera. At least with my K-x, there won't be gaps in the star trails caused by dark frame subtraction.
Kevin