[photo-3d] XA Lenses

["Ray Moxom" <raymoxom@xxxxxxxxxx>]

In reference to my comment that lenses are of a "Reverse Retrofocus Type".
That is, the distance between the lens and the film plane is less than the
focal length of the lens. Mike Canter comments:
> Isn't that also the definition of "telephoto" (as opposed to a standard
lens
> of long focal length)?

My understanding is that most, if not all, modern telephoto lenses are of
the "Reverse Retrofocus Type". Olympus used telephoto design ideas to design
a 35mm semi wide angle lens where the film to lens distance was shorter than
the focal length. They claim that this was a first for a wide angle lens and
resulted in a very compact camera with a pin sharp lens.

Ray Moxom