Is 40mm the best focal length? Kai thinks so..

In another video, Kai goes through the the diminutive 40mm pancake lens by Canon.  A lens that is super cheap and super good.  It should really be part of any Canon kit.

The 40mm at a glance;

• EF-Mount Lens/Full-Frame Format
• Aperture Range: f/2.8 to f/22
• One Aspherical Element
• Super Spectra Coating
• STM Stepping Motor for Smooth, Silent AF
• Rounded 7-Blade Diaphragm

The battle of the Canon 85mm's Popular Science: Article on Canon's broadcast camera lenses