I tried to take astrophography for the first time tonight. I had trouble with it because the moon was so bright....so failed. Anyways, this was not the problem. I noticed 2 things that bothered me. 1. When taking long exposures (30 seconds), after each shot there was this long processing going on. Why does it take soooooo long? It feels longer than taking the actual 30 second exposure shot. My friend was with me using his Nikon and there was no long processing after his shot. It just finishes pretty much immediately. Is this a common problem? And am I able to overcome it? 2. Viewfinder and LCD becomes useless after a certain shutter. I use the viewfinder to light get an idea of how lit my scene is. You can't do that after maybe 1 second of exposure? I can't remember. How do I overcome this? How do people take their shots in the dark with proper composition without seeing anything? Bonus Question unrelated. What exactly is focus infinity??