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From: chip@vaxwaller.UUCP (Chip Kozy)
Newsgroups: sci.electronics,rec.photo
Subject: Re: Flashbulbs (was something stupid and illegal...)
Message-ID: <2045@vaxwaller.UUCP>
Date: 20 Jan 89 22:41:06 GMT
References: <9844@sequent.UUCP> <25113@sgi.SGI.COM>
Organization: Varian Instruments, Walnut Creek CA
Lines: 25

In article <25113@sgi.SGI.COM>, donl@glass.SGI.COM (donl mathis) writes:
. 
. It's my understanding that leaf shutters trigger the flash when they
. are fully open, at least on X-sync (which is the only option on my Copal
. shutters, and on my dad's Seiko shutters).  The time spent opening and closing
. is therefore irrelevent, as far as the flash is concerned.

	That's the story I get, too.  With the flash held off until the
shutter is completely open shutter speed itself becomes irrelevant to a
greater degree.  That's why my Mamiyas will sync at any speed up to 1/500th
sec...the max the lenses will do.  (BTW they also have another setting for
flashbulbs, but, since it's after coffee break, I'll have to look at it
again before I can remember what it's called.)

					Sto lat;
					Chip
             ,,
*** SOLIDARNOSC ***

"Take only pictures, leave only footprints."  J. Muir

-- 

Chip Kozy   (415) 939-2400 @ Varian  2700 Mitchell Dr. Walnut Creek, Cal. 94598
		...!pacbell!varian!vaxwaller!chip