|
|
Posted by furles on 10/13/06 13:04
David McCall wrote:
> But you knew all of that anyway. The 3 bladed shutter in the
> projector doesn't affect your perception of motion. It alters
> the flicker rate to make it fast enough that most people will
> accept it as a solid (non flickering) image on the screen.
I agree with most of what you wrote; but most cinema film projectors do
not use three bladed shutters, two bladed ones are much more common.
As an alternative some machines, e.g. Kinoton use a single blade
running at twice frame rate. Three bladed shutters are available for
some machines, but are little used; their main application being in
venues which show silent films at lower frame rates.
Three bladed shutters were more common in 16mm projectors, and some
machines had shutters which could be converted to either two or three
blades, either manually, or automatically, depending on the projector
speed, Bolex and Graflex for example.
Navigation:
[Reply to this message]
|