Electronic Adapter Auto-focus Automatic Focusing Transfer Ring For A7/A7RII

Description:
Canon lens to Sony NEX body electronic auto focus adapter ring. Support full-width half-frame auto focus adjustable light. No horn all-metal materials Seiko production. Two years of free replacement fast focus can also support the camera horse Canon mouth of the lens.
Can be achieved with auto focus function Canon EF series lens to NEX series camera ring (EF-NEXII). Canon EF series of automatic lens mounted on this ring, you can automatically focus! Because this ring has a chip, front and rear bayonet with gold contacts, can transfer data to the NEX series camera.

Features:
This is the biggest highlight of this adapter ring is the first time to achieve the E-card to the EF bayonet autofocus, so that we use a series of Canon large aperture lens I used 85mm f / 1.2,24-70mm f / 2.8, 70-200mm f / 2.8 with a horse EF mouth 50mm f / 1.4 were tested, with NEX 5C transfer of these four lenses can achieve auto focus.
Because the SLR and micro single camera focus mode is different, the focus speed is relatively slow, focusing start The lens will move significantly before and after, and then slowly close to the focus, complete the focus, the time is about two seconds.
For the capture is clearly not possible, occasionally there will be a failure of the situation, you need to press the shutter button several times to complete the focus.
According to the manufacturer's introduction we know that this ring can also adjust the aperture, the camera in the P file and shutter priority can be adjusted when the aperture, in the aperture priority and M file can be manually selected in the body aperture size, and usually We used the E bayonet lens is exactly the same, you can completely get rid of Canon pure electronic bayonet can only use the maximum aperture manual focus shooting tragedy.
Focus on the use of the maximum aperture, press the shutter or video button after the aperture automatically shrink.

Specification:
Condition: 100% Brand New and High Quality
Diameter: Approx. 6.6mm/0.2''
Length: Approx. 26mm/1''
Fit Lens: Canon EF Lens
Fit Camera: Sony NEX E Mount
Front Mount: for Canon EF Mount
Back Mount: for Sony E Mount
Screw: 1/4 Screw

Packing List:
1 x Lens Cover

1 x Instruction
1 x Base

Note:

Focus speed compared with the original Sony lens will be slightly slower, the aperture can be displayed, take some time Identify!