innerspark wrote:Correction, not due to the M43 market, but because of the M43 mount/sensor design. There are lenses by Panasonic, Olympus, voigt, slr magic etc, that make lenses specifically for this mount, and can therefore be optimized for such a system. If you look at philip bloom's BMCC review, you'll see him demonstrating the crop factors between a FF, APS-C, M43 2x, and BMCC 2.3x.
The crop factor is identical in the BMCC-EF and BMCC-MFT. The lens mount is different, but the crop is the same (2.3x). The sensor is identical in the 2 models. The BMCC-MFT has a passive MFT mount, but has the same size sensor as in the BMCC-EF; neither are the size of the sensor used in other popular MFT cameras.
http://prolost.com/storage/post-images/ ... 5660764902For example, a 8mm lens will have the same FOV on the BMCC-EF & BMCC-MFT.
The announced BMCC-MFT lens mount is passive, a purely mechanical design with no electrical contacts. That means the BMCC-MFT will provide direct support for fully-manual, non-electronic MFT lenses. Electronic MFT lenses such as Panasonic Lumix & Olympus
can't be used on the BMCC-MFT, because they require power to support most features, including focus, aperture, IS, and lens distortion correction.
There are 3rd party electronic lens mount adapters available for the MFT mount (including a passive MFT mount) that enable using electronic EF lenses, and I suspect more "electronic" adapters will be announced at the NAB expo next month, possibly including support for electronic MFT on EF.
Whether there are more or fewer relatively wide lenses available for use on the BMCC-EF or BMCC-MFT depends on what
compatible lenses (either directly compatible or via an adapter) are available on the market. It has nothing to do with crop factors, because the crop factor of the two BMCC models is identical.