Protip: Use APT/ByEOS to help you focus
If you're using a DSLR and lenses (like me) instead of a telescope for astrophotography, you've probably had the struggle to focus properly and accurately. Most people will suggest using live view, zooming in on a star, and making that star really tiny. The more advanced method is to hook up your camera to a laptop and use software like APT or BackyardEOS to determine when the star is in focus.
However, what many people don't know is that APT and BackyardEOS can actually control your lens for you, so you don't have to manually turn the ring. I find this to be a much more accurate way to focus, especially with the Canon 50mm 1.8 II, as the focus ring is very sensitive. This way, you don't need to touch the lens and won't risk accidentally knocking it out of focus. The only caveat is your lens must be capable of autofocus.
Just thought I would share this little tidbit, as it isn't often suggested when people ask about focusing.
Submitted October 25, 2016 at 06:10PM by alfonzo1955 from reddit http://ift.tt/2dGVEbY via /r/astrophotography http://ift.tt/eA8V8J