Chuck
I agree, but if the flash does not fire immediately, the shutter stays
open long enough to pick up more light, then closes when the flash
fires. Presumably 1st curtain sync is designed to go off after a
certain amount of time. This is as explained in the manual, very
simplistically, of course.
Thanks for getting to the bottom of it. Flash does catch me out every
now and then ...
Chris
On 9 Dec 2007, at 23:40, Chuck Norcutt wrote:
> Curtain sync times only control when the flash fires... either
> immediately after the first curtain opens (1st-curtain sync) or
> immediately before the second curtain closes (2nd-curtain sync).
> Unless
> there is a long shutter open time the difference between them will be
> small. But, in any case, capture of the ambient light is not
> related to
> sync time but to shutter speed. What does happen is that any subject
> motion seen by ambient light either follows or precedes the frozen
> position caught by the flash.
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|