Re: focal plane shutter theory

I ralize this isn't quite what you're looking for, but . . .

You might consider buying an old Speed Graphic. A ready-made focal
plane shutter for 4x5 film is included. (Don't get a Crown Graphic;
that model line did not include the focal plane shitter.)
For more information (lots of it!) take a look at www.graflex.org

Mike Vande Bunt

Uptown Gallery wrote:

>This may be off topic, but the breadth of knowledge within this group may
>provide me an answer (off list , if necessary).
>
>I would like to understand (actually, analyze) the operation of a focal
>plane shutter, for the purpose of building one for sheet film. I want to get
>a grasp on calculating exposure duration as a function of slit width and
>linear speed, I guess (or direction to what I should be thinking about).
>
>Thanks
>
>Murray
>
>
>_______________________________________________
>Post to the list as PLAIN TEXT only - no HTML
>Pinhole-Discussion mailing list
>Pinhole-Discussion@pinhole.com
>unsubscribe or change your account at
>http://www.pinholevisions.org/discussion/
>
>.
>
Received on Sat May 11 02:20:38 2002