Well, this question may sound dumb to some folks but I am really confused here.
I was reading this article about Photographing Stars Using a Kit Lens where author talks about keeping widest aperture open i.e. f3.5. But as per my knowledge wide aperture means smaller area will be in focus and here we have to capture whole sky so ideally it should be f16 or f22.
I tried f3.5 and it worked as charm.
So, can anybody please put a light on this ? What exactly is going on here ?