On Mar 30, 2005, at 6:36 PM, Tom C wrote:
Because aside from the ability to use our existing lenses, we could all use them at their rated focal lengths, keeping backwards compatibility as one of Pentax's strong suits?
What is a "rated focal length"?
How do you use a lens at anything other than its actual focal length? Whether projecting onto a 16x24mm format or a 24x36mm format, a lens' focal length does not change.
Godfrey
