Star Trails advice wanted
I attempted (rather unsuccessfully) my first star trails photograph tonight and was wondering if anyone with experience photographing this subject can offer any advice for my next attempt?
One of my main problems was the front lens element misting up during the exposure. Is there a way to avoid this or should I just wait for a mild night?
I am based in the southern hemisphere, what direction is best to point the camera in order to get arched or circular trails?
I also noticed amongst the streaked star trails I got, one or two red and one or two blue stationary star sized anomalies. Are these dead pixels?
Sorry but unable to post photos as using my phone to post this (you're not missing much though!)