I've been reading this forum with interest over the past few months. I've taken a strong interest in photography for as long as I can remember. I've recently turned 30 and I've just bought myself my first DSLR, which I'm over the moon about. I'm interested in all sorts of photography, and for now I can only afford the 18-55mm kit lens, but I'm wondering if I can get some decent star trail results from it?
From what I can gather I will need a tripod (obviously) and a shutter cable. Am I right in saying that to get a decent result I will have to set the camera up on the the lowest aperture the camera will go (i.e f/4.8 with an ISO of 100)?
This has confused me, as the pictures I have seen have trees in the foreground that are fully in focus, but so are the stars! Am I being stupid? I just don't want to spend 2 hours of my time to find that I'm doing it wrong.