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- Newsgroups: rec.photo
- Path: sparky!uunet!psinntp!isc-newsserver!ritvax.isc.rit.edu!ANDPPH
- From: andpph@ritvax.isc.rit.edu
- Subject: Re: Why 2nd curtain sync ?
- Message-ID: <1993Jan24.031610.12862@ultb.isc.rit.edu>
- Sender: news@ultb.isc.rit.edu (USENET News System)
- Nntp-Posting-Host: vaxb.isc.rit.edu
- Reply-To: andpph@ritvax.isc.rit.edu
- Organization: Rochester Institute of Technology
- References: <9160@lee.SEAS.UCLA.EDU>,<1993Jan20.045514.11399@CSD-NewsHost.Stanford.EDU>
- Date: Sun, 24 Jan 1993 03:16:10 GMT
- Lines: 41
-
- In article <1993Jan20.045514.11399@CSD-NewsHost.Stanford.EDU>, rfrench@Xenon.Stanford.EDU (Robert S. French) writes:
- >In article <9160@lee.SEAS.UCLA.EDU> jcchang@paragon.icsl.ucla.edu (James Chang) writes:
- >>What difference does 2nd curtain flash sync make on the picture appearence?
- >>According to my camera manual (Canon Elan), it produces a more natural look?
- ...
-
- >Second curtain sync is useful when you are taking a picture of an
- >illuminated object with a slow shutter speed. Say you're taking a
- >picture of a person running by with a 2 sec exposure. With normal
- >front-curtain sync, you will get a flash at the beginning of the
- >exposure (and thus a sharp image of the subject at that point), and
- >then a blur _in front of_ the subject as the exposure continues. With
- >rear curtain sync you get the blur _behind_ the subject, which is
- >where most people expect it. At high shutter speeds it makes little
- >if any difference.
-
-
- pardon me for asking one more time.... what would you call 2nd curtain sync if
- you wanted to do this with a leaf shutter equipped camera such as a Hassleblad,
- most view cameras and point-and-shoots as well as most twin-lens cameras?
-
- I think that "tailflash sync" is a term that would cover them all with 2nd
- curtain sync being only applicable to FP shutter cameras. Any support out
- there?
-
- andy
-
- * * * * * *
- \/\/\/\/\/\/ Andrew Davidhazy, RIT, High Speed Photography Lab.
- | | IN%"andpph@ritvax.isc.rit.edu" fax 716-475-5804
- _________/ \_____________________________________________________
-
- BTW... if you would like the schematic of a tailflash synchronizer suitable for
- use with most leaf shutter cameras and a mechanical approach for adding this
- capability to FP cameras lacking it, send me your address
-
- BTW BTW Jim Bailey just before Modern went under described an electronic timer
- approach that while somewhat complex also will add this capability to FP
- cameras currently sans such capability.
-
-
-