Focal Length

[Angelcyk]

So I just got the Letus Extreme and I'm looking to build a lens package for it. I know the focal length on the HVX opens at 4.2mm but is there a difference when compared to the nikon lens at 24mm? For example, if I were use the built-in-lens on the HVX and zoom to a 24mm, would that be the same as the Nikon at 24mm? Unless I get a fisheye, there isn't a 35mm lens that goes wider than the HVX which is 4.2mm.

[Barry_Green]

Compared to lenses on a movie camera, the HVX has a 4.4x focal length factor. So at 4.2mm, it's equivalent to about a 19mm lens on a 35mm movie camera.

[Leo Versola]

So Barry, what is the focal length factor of the HPX170? I've been trying to calculate the 35mm equivalents throughout the zoom range but haven't been able to find any definitive answers...