Viltrox EF-E II 0.71X Speed Booster AF Lens Adapter for Canon EF to Sony E Mount

Viltrox EF-E II Lens Adapter Auto Focus Reducer Speed Booster 0.71X for Canon EF Lens to Sony E Mount Camera

A9 A7II A7RII A6400

• Viltrox EF-E II Electronic Adapter (F Booster) is the 2nd generation Auto Focus Reducer Speed Booster Lens Adapter.
• The EF-E II adapter can allow you to intall Canon EF mount lenses on Sony E mount APS-C camera perfectly.Thanks to the built-in optical lens (4 elements / 4 groups), it can increase the aperture by one f/stop and extend the focal length.
• Allowing you to get in the larger area of light and achieve the depth of field that you prefer.
• EF-E II comes with USB port for firmware update and and a switch to select CDAF or PDAF focus model.

Feature:

• With auto focusing function
• Suppot CDAF and PDAF focus model
• Can increase the lens 3 f-stop, increasing the amount of light into the virtual background, can better highlight the theme
• Reduced imaging focal length, the actual focal length after using EF-E for 0.71 times the focal length
• Let half frame cameras can take photos as full frame cameras
• Aperture can be accurate through ring expansion corresponding action
• Zinc alloy technology, stable and reliable
• Signal transmission using PIN gold needle, greatly enhance its transmission performance
• Ring at the bottom with 1/4 screws, which can easy installed on the tripod or other fixed bracket

Upgraded Function(Comparison with EF-E I):

1.Two Auto Focus model :

a) PDAF(phase detection auto focus): Focus speed is faster.

b) CDAF (contrast detection auto focus):Focus success rate is higher

2.Firmware upgrade can be operated via the USB port.

3.Support more Canon lenses and Sony E mount cameras

Notice:

1.To update adapter firmware, latest firmware can be download from official website, connect adapter to computer with USB cable and copy the file into adapter memory. Do not required to attach lens or camera.

2.To change AF mode, switch to desired AF mode on adapter, then turn off camera, take out battery, insert…