Dark Skies: Astrophotography

I thought this app was dead, then this huge update shows up! AND no more ads! Fantastic work!

There are only three choices for the Canon camera; you have no real input as to what camera or ISO setting you are using; every 4-5 seconds, another ad pops up disrupting your use of the program, no matter how many times you decline a purchase for the same item. Very annoying as an app. Developer doesn't know the difference between the word add (a verb) and ad, short for advertisement: this should be a red flag right here. Absolutely useless as a tool for the professional. Erased my copy: I already have a calculator.

If your lens is supported, this is a useful tool to have if you do a lot of night time photography. That being said, it's an oddly specific tool if you don't do a lot of night time photography. Works as advertised, would like to see support for more lenses.