Features:
Auto-focus function.
Aperture exactly being aligned via the mount adapter.
Built-in IS function.
Full-frame adapter aperture hole design， perfectly supports for Sony full-frame camera A7/A7R.
Zinc alloy core makes the adapter strong and powerful.
Gold-plated pins brings the great conductivity of signal transmitting.
1/4 Female thread screw for mounting onto the tripod.

Specification:
Compatible lens: for Canon EF series lens
Compatible cameras: for Sony NEX series with E-mount (Including for Sony NEX full-frame camera A7/A7R)
Front mount: for Canon EF mount
Rear mount: for Sony E mount
Tripod screw: 1/4 screw
Max. diameter and length: 66.6 * 26.0mm
Color: White
Item size: 8 * 6.6 * 3cm / 3.1 * 2.6 * 1.2in
Item weight: 120g / 4.2oz
Package size: 10.2 * 9.3 * 5.3cm / 4.0 * 3.7 * 2.1in
Package weight: 218g / 7.7oz

The current tested compatibility: for

for Canon Zooming Lens	for Canon Fixed Focal Lens	Other Brands
EF 8-15/4L USM fisheye	EF 100/2.8 USM macro	for Sigma DC 17-70/2.8-4 DC OS HSM
EF 17-40/4L USM	EF 135/2L USM	for Sigma DC 30/1.4 DC HSM
EF 70-200/2.8L IS USM II	EF 200/2.8L II USM	for Tamron SP 24-70/2.8 Di VC USD
EF 70-200/4L USM	EF 300/2.8L IS USM	for Tamron SP 70-200/2.8 Di VC
EF 70-200/4L IS USM	Extender EF 1.4x III
EF 20-35/2.8L (Ver.18)	EF 14/2.8L II USM
EF 22-55/4-5.6 USM	EF 24/1.4L II USM
EF 24-70/2.8L USM II	EF 24/2.8 IS USM
EF 28-80/3.5-5.6 II	EF 35/1.4L USM
EF 28-90/4-5.6 III	EF 50/1.2L USM
EF 35-350/3.5-5.6L	EF 50MM 1.8II
EF 70-300/4-5.6L IS USM	EF 85/1.2L II USM
EF 70-300/4-5.6 IS USM	EF 85/1.8 USM
EF100-300/5.6 (non-L， not USM， push-pull zoom ) (Ver.18)	Extender EF 2x (mark I)
EF 100-400/4.5-5.6L IS USM	EF-S 60/2.8 macro USM
EF-S 10-22/3.5-4.5 USM
EF-S 17-55/2.8 IS USM
EF-S 17-85/4-5.6 IS USM
EF-S 18-55/3.5-5.6
EF-S 18-55/3.5-5.6 IS
EF-S 18-135/3.5-5.6 IS
etc.	etc.	etc.

Package list:
1 * Auto Mount Adapter
1 * User Manual