This has been one of my "bucket list" items, to photograph the Milky Way Galaxy over or behind Pigeon Point Lighthouse. As the stars aligned and the fog stayed way off shore, I asked my hubby if he would drive down with me...he drove. I cannot express my gratitude and complete awe at what is presented to us if we only take a few minutes to look. So amazing!
I was using my Canon 5d III and switched between my Sigma 15mm f 2.8 fisheye and my Canon 17-40 f4 lens. My ISO's were between 1600 and 3200 and my shutter speed was between 15 seconds and 25 seconds. I had found a snippet of information somewhere a while back that said to prevent star trails to shoot less than 26 seconds...
So, all you really need is a camera, wide angle lens, tripod, remote trigger/cable release and time (no clouds, moon, fog, light pollution...).
The following image is the before and after. Photographed at 17mm, ISO 3200, f4.0, at 15 seconds. With a little work in Lightroom! I toned down the red just a bit too!