OT-PHOTO-Wind
- To: Multiple recipients of list <i*@rt66.com>
- Subject: OT-PHOTO-Wind
- From: "* F* L* <c*@pacbell.net>
- Date: Sat, 17 May 1997 22:17:24 -0600 (MDT)
List members:
A few days ago I wrote:
> "The effective shutter speed for even the least expensive unit is in the
> neighborhood of 1/1000th of a second. More expensive units with
> automatic exposure will yield shutter speeds approaching 1/50,000th of a
> second."
. . . and committed a real gaff for which several other phtographers
took me to task . . . and rightly so.
What I should have written was:
"The EFFECTIVE EXPOSURE for even the least expensive flash gun is in the
neighborhood of 1/1000th of a second. More expensive flash guns with
automatic exposure will yield EFFECTIVE EXPOSURES approaching 1/50,000th
of a
second."
Of course the shutter speed on any focal plane camera must be set at
1/30th or 1/60th of a second to make sure that the entire frame of film
is exposed when the flash goes off.
And at these shutter speeds it is wise to mount the camera on a tripod
to reduce camera movement during exposure. Good idea to read the camera
instructions also (novel idea to some) as some cameras have a special
electronic flash setting. Such shutter speed settings are typically
indicated by an "X" or a lightning bolt symbol on the shutter speed
dial.
Please accept my apology if I misled anyone.
And to those of you who took me to task. Thanks . . . I deserved it for
such careless writing.
Sincerely,
Al Limberg
Concord, CA
