Re: Focal length doubling

The 4/3 format and later the Micro 4/3 format was originally created by Olympus and Kodak almost 10 years ago.

The 35mm Still Photo format has been around since the first Leica cameras, but people need to realize that the 35mm Still Photo format is very different than the 35mm Motion Picture formats.

There aren't many great Micro 4/3 lenses around, but the are slowly trickling in with very big deal lenses coming next year. ( the 12-35mm Panasonic Fast Zoom is the one I am watching )

Nikon AI-S manual lenses are the ones I would recommend for AF-100 / GH-2 video production, as they are cheap, have manual apertures, and smooth focusing.

The Nikon 17-55mm AF Zoom is currently one of the best lenses for the AF-100, but it requires a special Nikon G mount adapter in order to control the aperture.

And for wide angles lenses, you have to go Micro 4/3 because regular 35mm still photo lenses don't have very short focal lengths. ( the Olympus 12mm f/2.0 and the Panasonic 7-14mm f/4.0 zoom are two top choices )