Re: Exact fl of lenses... 220 VR

[Bill Glickman <bglick@xxxxxxxx>]

Andrew

> exactly ... it goes without saying that if the film transport mechanism is
> delivering incorrect film speed for whatever reason (bad gearing, improper
> alogorithm, lack of lubrication, ... whatever) you will end up with less
than
> perfect (within the limits of physical possibility) results.
>
> The lens focal length still does not change ... what does or might change
is
> the rate at which film travels through the camera.

   A lenses fl is constant for life, however on a rotational cameras its
only half the equation.  Unless you can change the mecahnical aspects of the
camera, the fl is the only variable you have to work with....

Bill



>
> regards,
>
> Andrew  o o  0 0 o . o  Davidhazy, Imaging and Photo Tech
>          \/\/\/\/\/\/          http://www.rit.edu/~andpph
> __________|        |_____________________________________
>