* Not compatible with EFS Lenses
- True electronic integration of aperture diaphragm - let camera automatically choose aperture in P or S exposure modes, or dial in yourself on the camera body in A or M modes.
- Powered by camera body. No external power source required.
- Wide open button (opposite of depth-of-field preview function) makes manual focusing easy.
EF lenses (see below for list of tested lenses)
EF-S lenses (see note 1)
Image stabilization (IS) (see note 2)
Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)
EXIF (focal length, aperture, zoom range)
P, A, S, M exposure modes
Contax N mount lenses modified to Canon EF by Conurus (see note 3)
Contax 645 NAM-1 adapter modified to Canon EF by Conurus
Sigma, Tamron and Tokina lenses in Canon EF mount (see note 4)
Manual focus lenses adapted to Canon EF mount ('chipped' or 'AF confirm' adapters are not officially supported)
Lens correction such as peripheral shading, CA and distortion
- Vignetting at corners may occur for certain EF-S lenses because they are designed to cover a 1.6x crop image circle but Sony NEX has a 1.5x crop sensor.
- Image Stabilization lens requires adapter firmware version 02 or above. After flipping the IS on/off switch on the lens, you may need to press the WO button on the Smart Adapter for the change to take effect.
- A small percentage of samples of Contax N Planar 50/1.4 may be incompatible with NEX cameras.
- A third party zoom lens may need to be registered with the Smart Adapter first in order to detect its maximum aperture.