I’d also like to have some faster zooms - f2,8, or baring that f3.5 - 4.0. I find I use the little GH2 more and more, preferring to put up with it’s shortcomings rather than lug a D3s and 70-200 f2.8 along on hikes. I realize a faster zoom will be larger and heavier than the slow zooms available now, but given the 2x crop sensor, and the small, lightweight GH2 it will still offer an advantage.
The 14-140 is not especially sharp, but it’s smooth to zoom and a very handy focal length range. For video at a 50th of a second it is OK, but trying to get a decent shutter speed for action at a reasonable ISO can be a real challenge. I find I tend to look for shots I can work in software, rather than use as straight photos.
The 100-300 is faster and sharper than the 14-140, but it binds when I zoom it (I tried three of these and they are all the same). It’s good for reach in video, especially with the ECT mode,
http://www.vimeo.com/23235270
I remember seeing this, which alludes to two “bright zoom lenses”, but I’ve seen nothing since then. Has anyone else?
http://www.43rumors.com/mr-kitao-itirou-panasonic-talks-about-the-small-gf2-and-the-next-lenses/
1) Mr.Kitao says they can design compact MicroFourThirds smaller than the Sony NEX cameras!
2) The next three lenses, the 25mm f/1.4 and the two bright zoom lenses will be both compact and high-quality lenses.
There is also this (I have a slew of fast Canon lenses),
http://www.birger.com/
“Birger is coming out with a lens control system for EF mount lenses on the Panasonic AF100. Control for the iris, both auto and manual, will be from the camera. Continuous (video-style) auto-focus will be supported on most Canon "L-series" lenses. Power is provided by the camera for most lenses. Image stabilization is supported on "IS" lenses, and this feature can be turned on or off from the lens.”
If it works on the AF100, I assume it will also work on the GH2.