Sorry to ask... but what does the 1/250th of a second with the speed at
wich the shutter curtains open and close? I always understood the
curtains moved at the same speed, and the actual exposure time was
controlled by the difference in the their release - from a very short
difference to a few seconds, where the x-sync was first the moment the
entire film was exposed.
Moving the max speed and x-sync upwards required faster shutter blades,
but there was always the need for exposing the entire film to a
conventional x-sync, and the exposure still is dosed by the difference
in the release of the shutter blades, not their speed of travel, AFAIK.
LF
Adam Maas escreveu:
Well, since you asked, shutter blade velocity is 6m/s at 1/250th. That
works out to about 13.5mph ;-)
-Adam
On Fri, May 22, 2009 at 4:26 PM, Joseph McAllister <pentax...@mac.com> wrote:
I was waiting for someone to argue my "10,000" mph was incorrect for for
focal plane shutter velocity. It probably is.
--
Luiz Felipe
luiz.felipe at techmit.com.br
http://techmit.com.br/luizfelipe/
--
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow
the directions.
