Xref: utzoo sci.electronics:4780 rec.photo:4277 Path: utzoo!yunexus!maccs!nusip From: nusip@maccs.McMaster.CA (Mike Borza) Newsgroups: sci.electronics,rec.photo Subject: Re: Flashbulbs Message-ID: <1818@maccs.McMaster.CA> Date: 19 Jan 89 20:59:31 GMT Article-I.D.: maccs.1818 References: <9844@sequent.UUCP> Reply-To: nusip@maccs.UUCP (Mike Borza) Organization: McMaster U., Hamilton, Ont., Can. Lines: 16 In article <9844@sequent.UUCP> brian@crg1.UUCP (Brian Godfrey) writes: > There are three basic syncing problems: electronic flash, bulbs & leaf >shutters, and bulbs & focal plane shutters. > Electronic flash is extremely fast, ranging generally from 1/5000 to >1/25000. With electronic flash you have to make sure and wait until the >shutter is all the way open before triggering the flash. This takes from >1/250 sec on some cameras to 1/60 sec on others. The actual exposure >happens very quickly. Then the shutter closes at its leisurely pace. Pardon my ignorance, but... doesn't this mean that shutter speed is essentially irrelevant for a flash picture taken using an electronic flash? If so, how does one control the exposure? (sci.photography what?) mike borza