景深计算 app for iPhone and iPad

This program is an easy and must-have tool for all photographers, which can automatically calculate the depth of field according to camera model, aperture and shutter speed.

This program has special function of optical distance measurement by inputting height, you can have source object distance and depth of field directly according to the scale ratio of image size formed from iphone lense. This tool makes it simpler, faster and more convenient to calculate the depth of field, which can be used for professional photography of portrait, body, architecture, still life and so on .