This is a useful tool for scouting locations and for directors working with a DP on set. Its a very full-featured app which is great - in theory.
The +/- buttons for switching lenses are tricky to tap. I miss about half the time because theyre so small. When I do successfully tap a button, it takes my iPhone 5 a second to respond and sometimes registers 2 taps since it seemed like the first one didnt register.
Artemis is a nice little helper when necessary but if you are a real director doing real gigs, get a real viewfinder.
Coach Buzzkut about Artemis Director's Viewfinder, v6.1