Adam's describes himself as an 'avid amateur mediocre photographer' and his main camera is a Canon 5D Mark III used with a hoard of Canon prime lenses, but this time he talks mostly about his Sony NEX cameras and the Metabones Speed Booster NEX to EF lens adapter, and how his mind got blown to pieces when he realized what it does-and that it works:
"Adam and Norm talk about photography as a hobby and review the Metabones Speed Booster, a new lens adapter connects Canon full-frame lenses to Sony's compact cameras. With side-by-side photo comparisons, we show why this is a piece of hardware that is very exciting for Adam's needs."
No longer the stuff of rumors, here's the E-M5 straight from the horse's mouth:
Metabones and Caldwell Photographic introduce Speed Booster
Petersburg, VA, USA, January 14, 2013 - Metabones® and Caldwell Photographic jointly announce a revolutionary accessory called Speed Booster™, which mounts between a mirrorless camera and a SLR lens. It increases maximum aperture by 1 stop (hence its name), increases MTF and has a focal length multiplier of 0.71x. For example, the Canon EF 85mm f/1.2L II lens becomes a 59mm f/0.9 lens on a Sony NEX camera, with increased sharpness. The faster F-stop allows for shallow depth-of-field and a lower ISO setting for decreased noise. . . . read more
We got some highlights in case the file goes away, but hey, the whole document is worthy of a read. Especially for micro 4/3 camera owners :) Check out the interesting section 17 about the usage of a similar technique by Stanley Kubrick during the shooting of Barry Lyndon.
The Speed Booster – a New Type of Optical Attachement for Increasing the Speed of Photographic Lenses
Brian Caldwell, Caldwell Photographic Inc.
and Wilfried Bittner, WB Design
1) Introduction . . . read more