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Path: utzoo!watmath!watnot!watcgl!onfcanim!dave
From: dave@onfcanim.UUCP (Dave Martindale)
Newsgroups: net.graphics,net.video
Subject: Re: Re: Need cheap single frame recording video deck.
Message-ID: <14895@onfcanim.UUCP>
Date: Sat, 5-Jul-86 11:24:03 EDT
Article-I.D.: onfcanim.14895
Posted: Sat Jul  5 11:24:03 1986
Date-Received: Sun, 6-Jul-86 01:01:17 EDT
References: <2257@uwmacc.UUCP> <732@nicmad.UUCP> <2841@pixar.pixar> <674@osu-cgrg.UUCP>
Reply-To: dave@onfcanim.UUCP (Dave Martindale)
Organization: National Film Board / Office national du film, Montreal
Lines: 27
Xref: watmath net.graphics:1771 net.video:2835
Summary: 

In article <674@osu-cgrg.UUCP> flip@osu-cgrg.UUCP (Flip Phillips) writes:
>> >In article <2257@uwmacc.UUCP> net@uwmacc.UUCP (jeff kesselman) writes:
>> >>I'm trying to find a video deck with single frame record capability that my
>> >>university could afford (Some where in the $1000-$1500 area). Any suggestions?
>
>why not just set up a 16mm camera, do the single framing and have it
>transfered to video :-) 

Actually, don't joke. That's potentially capable of pretty good quality,
and as a bonus will record video that varies from NTSC specs in any of a
variety of ways.

Things to remember are:
1) if you want the best colour rendition, you've got to do correction
   for the gamma of the video monitor as well as for the film characteristics;
   in practice this is a single process not two separate ones
2) if you want really stable images, the 16mm camera must be pin-registered.
3) if at all possible, control the exposure time by blanking the screen,
   opening the camera shutter, unblanking the screen for a specific
   number of video frames, blanking the screen, and closing the shutter.
   This way, the whole image area receives the same exposure.  If you use
   the mechanical shutter on the camera to control exposure, you risk
   seeing dark or light bars on the image since the screen image is flickering.

This doesn't let you see what you've done immediately, but appropriate
16mm equipment is probably cheaper than video equipment capable of the
same quality.