The latest trend in hobbyist-level photography is the EVIL format, basically a mirrorless design that allows for interchangeable lenses. The Olympus E-PL2 and Panasonic GF2 are two of the more prominent cameras using the “micro four-thirds” design, but Sony is developing a competitor it calls E-mount, and has just released the spec for it. Will lens makers choose one over the other in a sort of niche market format war?
I’m not sure it’ll have a big effect on consumers one way or the other. Most consumers aren’t going to choose one brand of lens over another, but choose their camera based on its looks and features and get whatever lens seems economical. Sure, it’d be nice to have Zeiss and Sigma options for every mount, but in the end, what matters is whether you can get the shot. That has more to do with the camera and the photographer at this point.
The companies backing E-mount are currently Zeiss (which just announced its M4/3 allegiance yesterday), Tamron, Sigma, and Cosina.