UPC 019483910270

• 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.
• Flocking material coating inside the inner hole to reduce the internal reflection.
• High performance 32-bit processor and efficient switched-mode power supply.
• Wide open button (opposite of depth-of-field preview function) makes manual focusing easy.
• The inner hole is painted with flocking material coating. This can further reduce the internal reflection.

Electronic aperture, EXIF, image stabilization, autofocus This Smart Adapter has the following features: 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. The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo cam ball heads. High performance 32-bit processor and efficient switched-mode power supply. Flocking material coating inside the inner hole to reduce the internal reflection. Enhancement on new MARK IV (MB_EF-E-BT4) vs. old MARK IV (MB_EF-E-BM4): The inner hole is painted with flocking material coating. This can further reduce the internal reflection. Supported EF lenses (see below for list of tested lenses) EF-S lenses Image stabilization (IS) lens 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 Autofocus Distance and zoom display on VG and FS series camcorders Auto magnify Contax N mount lenses modified to Canon EF by Conurus Contax 645 NAM-1 adapter modified to Canon EF by Conurus Sigma, Tamron and Tokina lenses in Canon E