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Stereo stuff
I have one Q in case anyone here knows the answer. If I use two digital cameras do they have to be synchronised, or can that be done in editing by frame shifting? "Dirk Bruere at Neopax" <dirk.bru***@gmail.com> wrote in message If I understand your question correctly, yes, it's fairly easy to news:3ri8raFjqf6eU2@individual.net... > Interested in stereo using polarised light. > I have one Q in case anyone here knows the answer. > If I use two digital cameras do they have to be synchronised, or can that > be done in editing by frame shifting? synchronize two separate video sources in post. Show quoteHide quote > > -- > Dirk > > The Consensus:- > The political party for the new millenium > http://www.theconsensus.org PTravel wrote:
> "Dirk Bruere at Neopax" <dirk.bru***@gmail.com> wrote in message The other related Q in that case is: how accurate is the timing on (cheap) > news:3ri8raFjqf6eU2@individual.net... > >>Interested in stereo using polarised light. >>I have one Q in case anyone here knows the answer. >>If I use two digital cameras do they have to be synchronised, or can that >>be done in editing by frame shifting? > > > If I understand your question correctly, yes, it's fairly easy to > synchronize two separate video sources in post. digital cameras?
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"Dirk Bruere at Neopax" <dirk.bru***@gmail.com> wrote in message I'm afraid I have no idea what you mean by "cheap digital cameras." Digital news:3ricb1FjtlsjU1@individual.net... > PTravel wrote: > >> "Dirk Bruere at Neopax" <dirk.bru***@gmail.com> wrote in message >> news:3ri8raFjqf6eU2@individual.net... >> >>>Interested in stereo using polarised light. >>>I have one Q in case anyone here knows the answer. >>>If I use two digital cameras do they have to be synchronised, or can that >>>be done in editing by frame shifting? >> >> >> If I understand your question correctly, yes, it's fairly easy to >> synchronize two separate video sources in post. > > The other related Q in that case is: how accurate is the timing on (cheap) > digital cameras? camcorders sold in the U.S. conform to NTSC standards, which is 29.97 frames per second. They are very accurate in that, if they were not, you wouldn't be able to watch the video they produce on a television. I've synced the output of miniDV camcorders over 1-hour in length without any apparent drift. Show quoteHide quote > > -- > Dirk > > The Consensus:- > The political party for the new millenium > http://www.theconsensus.org PTravel wrote:
Show quoteHide quote > "Dirk Bruere at Neopax" <dirk.bru***@gmail.com> wrote in message Some good news for a change...> news:3ricb1FjtlsjU1@individual.net... > >>PTravel wrote: >> >> >>>"Dirk Bruere at Neopax" <dirk.bru***@gmail.com> wrote in message >>>news:3ri8raFjqf6eU2@individual.net... >>> >>> >>>>Interested in stereo using polarised light. >>>>I have one Q in case anyone here knows the answer. >>>>If I use two digital cameras do they have to be synchronised, or can that >>>>be done in editing by frame shifting? >>> >>> >>>If I understand your question correctly, yes, it's fairly easy to >>>synchronize two separate video sources in post. >> >>The other related Q in that case is: how accurate is the timing on (cheap) >>digital cameras? > > > I'm afraid I have no idea what you mean by "cheap digital cameras." Digital > camcorders sold in the U.S. conform to NTSC standards, which is 29.97 frames > per second. They are very accurate in that, if they were not, you wouldn't > be able to watch the video they produce on a television. > > I've synced the output of miniDV camcorders over 1-hour in length without > any apparent drift. Dirk Bruere at Neopax wrote:
Show quoteHide quote > PTravel wrote: One last point -- if frames are dropped, sync can't be maintained.> > > "Dirk Bruere at Neopax" <dirk.bru***@gmail.com> wrote in message > > news:3ricb1FjtlsjU1@individual.net... > > > >>PTravel wrote: > >> > >> > >>>"Dirk Bruere at Neopax" <dirk.bru***@gmail.com> wrote in message > >>>news:3ri8raFjqf6eU2@individual.net... > >>> > >>> > >>>>Interested in stereo using polarised light. > >>>>I have one Q in case anyone here knows the answer. > >>>>If I use two digital cameras do they have to be synchronised, or can that > >>>>be done in editing by frame shifting? > >>> > >>> > >>>If I understand your question correctly, yes, it's fairly easy to > >>>synchronize two separate video sources in post. > >> > >>The other related Q in that case is: how accurate is the timing on (cheap) > >>digital cameras? > > > > > > I'm afraid I have no idea what you mean by "cheap digital cameras." Digital > > camcorders sold in the U.S. conform to NTSC standards, which is 29.97 frames > > per second. They are very accurate in that, if they were not, you wouldn't > > be able to watch the video they produce on a television. > > > > I've synced the output of miniDV camcorders over 1-hour in length without > > any apparent drift. > > Some good news for a change... This won't be an issue for the camcorder, but can be an issue for the computer and transfer protocol, i.e. use an OHCI-compliant 1394 port on the computer, make sure the computer has sufficient power to handle the data stream and record it to the hard drive, and use capture software that is sufficiently robust and will report (or, at least, abort on) dropped frames. Show quoteHide quote > > -- > Dirk > > The Consensus:- > The political party for the new millenium > http://www.theconsensus.org |
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