Good Canon companion app
Professor Good tool that help me to select lenses.
Great! Everything is great but price of the lenses has to be corrected for many of them. Update: still so many of them are over priced. Please correct them.
Excellent Good source of information
4.8.3: Added new EF-S18-55mm f/4-5.6 IS STM lens.
4.8.1: Added Canon EOS M5 to the Field of View Simulator and Depth of Field Calculator.
4.7.0: Added new EF16-35 f/2.8L II USM and EF24-105mm f/4L IS USM lenses. Added Canon EOS 5D Mk IV to FOV simulator and DOF calculator.
184.108.40.206: Added new EF-M28mm f/3.5 Macro IS STM lens.
4.5.2: Added EOS 1D X MK II, EOS 80D APS-C, and EOS 1300D to the DOF calculator and FOV simulator.
4.5.1: Added new EF-S18-135mm f/3.5-5.6 IS USM lens