Sigma TC-1401 1.4x Teleconverter Lens Mount:Canon EF holding focus throughout zoom moves

holding focus throughout zoom moves

extending its lifespan

Avid Media Composer

Author: Brenda Tharp and Jed Manwaring

Sigma TC-1401 1.4x Teleconverter Lens Mount:Canon EF holding focus throughout zoom movesCompact, light, and provides easy extension of focal range, the Sigma TC 1401 1. 4x Teleconverter offers an increase in focal length of 1. 4 times for select Global Vision lenses. By mounting it in between a telephoto lens and a camera, the offered magnification of focal length of TC 1401 is 1. 4 times, offers full communication between the lens and camera, and will allow autofocus to operate at up to f 8. The teleconverter incorporates SLD (Special