Use this to plan shoots – Lens•Lab Review

This app really helped me realize why I was missing focus so much on a Nikkor 135mm f/2, I hadn't realized that unlike the lenses I'm used to, the DoF at 135mm, and about 10 feet is razor thin unless I dial the lens up to f5.6 or f8. The app now looks great on apple's latest phones too.
Review by Cheule on Lens•Lab.