Viltrox C-AF 2XII TELEPLUS can make the focal length increased to 2 times,and the auto-focus function of the camera lens can be used perfectly, and don't change the EXIF information. C-AF 2XII specially use for 100mm or more fixed focal length lens, but not recommend for use in less than 60mm of short-focus lens.

Specifications:
Brand: Viltrox
Model: C-AF 2XII
Mount Type: For Canon EF-Mount Lens
Magnification: 2X
Depth of Field: Half of the Lens
Min Stacking Focal Length: Equal to the Lens
Constitution of the Lens: 7 Glasses, 4 Group
Focus Mode: Full Auto Focus
Lens Coating: Multi-coated
Exposure Factor: Appro. 4 Times (Equal to 2 aperture)
Item Size: 6.7 * 6.7 * 6.7cm / 2.6 * 2.6 * 2.6in(With front & rear cover)
Item Weight: 159.5g / 5.6oz
Package Size: 9.4 * 9.4 * 9.1cm / 3.7 * 3.7 * 3.6in
Package Weight: 210.5g / 7.4oz

Package List:
1 * Teleconverter Lens with Front & Rear Covers
1 * User Manual(English/Chinese)

Note:
Camera and lens are not included.