[rec.video] Video, still frame recording

harald@ccicpg.UUCP ( Harald Milne) (07/28/87)

	The Sony SL-HF1000 is the only VCR in the world that can do still frame
recording. However, this takes control of the VCR with the use of a computer
interface or some SONY box or TWO SL-HF1000 VCR's. I can not be done alone 
.
	For some silly reason, Sony is sitting on this. I get this question
everyday. This VCR has ALL the neccesary components to accomplish this task.
They are as follows:
	1) Frame Counter
	2) Pre-roll
	3) The "T" connector. This is the key.
	4) Master/Slave configuration.
	5) Flying erase heads. (Only needed for recorded over previously 
	     recorded material). Ala most 8mm.
	
On the "T" connector:
	1) I don't know the full story on this, but in order to accomplish
	   what Sony claims, it has to at least supply SMPTE time code
	   information. This is imperative to locating SINGLE frames of
	   video.

	2) Pre-Roll
	   To do TRUE single frame, it is absoutly necessary to PRE-ROLL
	   You have to run the tape back, and then foward, with knowledge
	   of the frame you want to insert into to accomplish this task.
	3) You need some kind of control
	   I don't have one of these beasts. Wish I did! I could answer
	   all questions if I could!!!
	3) The reason the "T" connector is the key is what information
	   is exchanged. The VCR as a slave, is a robot.
	4) The SL-HF1000 does all of the above.

Nuff sa19)

sgt@alice.UUCP (07/30/87)

In article <1498@ccicpg.UUCP> harald@ccicpg.UUCP writes:
#	The Sony SL-HF1000 is the only VCR in the world that can do still frame
#recording.
You mean only consumer-grade/price-range VCR, right?
Anyone know a good reason why we couldn't do it with a Sony Vo-5850
(assuming we had the right interfaces)
#	
#On the "T" connector:
#	1) I don't know the full story on this, but in order to accomplish
#	   what Sony claims, it has to at least supply SMPTE time code
#	   information. This is imperative to locating SINGLE frames of
#	   video.
Is a real-time tape counter (one that counts pulses on the control track)
good enough, or do I need a time-code system?
We can usually edit to one-frame accuracy with our system
(a VO-5850, VO-5800, and RM-440 edit controller, all from Sony)

If I can do this with a 5850, can someone tell me where to get
an appropriate interface/controller, or better yet, set me
in the right direction on building my own.

-- 
Steve Tell, Student: Duke University.  Cheif Engineer: Cable 13 / Duke Union
Community Television.  Summer Employee: AT&T Bell Laboratories, Murray Hill,
NJ.			"Wouldn't you rather be interesting than nice?"
			 from Cyrus X: The Move.  (A cable 13 production)