The lens' aperture is set to wide open for ease of focusing while the Wide-Open (WO) button of the Metabones Speed Booster / Smart Adapter is depressed. Release the button and the lens will return to the aperture set on the camera.
This wide-open function is automatically shut off when you actually take a picture and during movie capture.
On some camera bodies, this wide-open function is unavailable when the Metabones Smart Adapter is in Green Mode.
Vancouver, Canada, May 6, 2013 - Metabones® introduces third-generation Smart Adapter™ for mounting EF and EF-S mount lenses on Sony NEX cameras. Smart...
Petersburg, VA, USA, January 14, 2013 - Metabones® and Caldwell Photographic jointly announce a revolutionary accessory called Speed Booster™, which...
Vancouver, Canada, November 7, 2012 - Metabones adds autofocus support for select Canon lenses to its Smart Adapter II (for mounting EF and EF-S mount...
Metabones designs, manufactures and sells quality camera adapters and related camera accessories. Metabones has its own design team based in Japan and...