Video: The Technologies Inside Canon’s EF Lenses

If you’d like a primer on the technologies found inside Canon’s EF line of lenses, look no further than this 12-minute introduction created by Canon. We

via PetaPixel: https://petapixel.com/2015/01/10/video-technologies-inside-canons-ef-lenses/

If you’d like a primer on the technologies found inside Canon’s EF line of lenses, look no further than this 12-minute introduction created by Canon. We learn about things like aspherical lenses, fluorite lenses, diffractive optics, USM, lens coatings, and more.