The Magic Canon ViewFinder app is a free app that lets you use your phone as a stand-alone viewfinder for film and video production. It allows you to choose from the list of cameras and lenses from the most popular brands.

It offers you a precise preview of the field of view for the real camera/lens combination you will be shooting with, right where you stand with your phone.

The app can be used with all mobile devices and has an intuitive and simple interface, which makes it easy to use.

It has a built-in depth-of-field (DOF) tool, which calculates the near and far limits of the DOF. You can change the aperture and the focus distance.

The app also has a built-in color and a lighting tool.