Another Newbie Question: Tape problems when rewinding at DVinfo.net

Nic Maguire · July 18th, 2006, 07:07 AM

Hi there again.

I have noticed occasionally just at the end of rewinding a DV tape after filming right towards the end as it speeds up the tape before it finishes rewinding it sometimes chews or gets caught up. I am not sure if it is getting caught up in the machine or it is the tape itself as the tape when removing it from the camera looks like it has got caught on something when the rewind process has finished.

The last time this occurred i forwarded the new DV tape to 5 mintues out and it filmed as normal and upon rewinding back to the 5 minute mark i didnt encouter this problem only when it rewinds right back to the end as mentioned above.

Has anyone encountered this problem before as the Canon techs i contacted have never heard of this problem before they only guessed it could be a possible alignment problem with the camera?.

I have used Panasonic or JVC brand DV tapes so far??.

Jack Smith · July 18th, 2006, 09:00 PM

Any time a tape machine chews a tape,I would suspect either contamination of either the tape and/or the machine(dirty) or a component worn or misaligned.If has happened with more than 1 tape,I would suggest sending it in for service to find out.I personally use a rewinder to rewind and only rewind before capture.My old vtr's use to slow down as the tape approached the end of travel.I wish all tape machines did that.

Nic Maguire · July 18th, 2006, 09:47 PM

Thanks again Jack have put it in for service hopefully the Canon Techs will find and recitify the problem.

Quote:

Originally Posted by Jack Smith

Any time a tape machine chews a tape,I would suspect either contamination of either the tape and/or the machine(dirty) or a component worn or misaligned.If has happened with more than 1 tape,I would suggest sending it in for service to find out.I personally use a rewinder to rewind and only rewind before capture.My old vtr's use to slow down as the tape approached the end of travel.I wish all tape machines did that.

Jack Smith · July 21st, 2006, 11:30 PM

Nic, I reread your post and it sounds like your saying the tape speeds up as it nears the start of the tape.Now I'm not sure but I swear mine sounds like it slows down the last few seconds.If it's correct that yours speeds up just before reaching the stop, I'd ask Canon about that.

Greg Boston · July 22nd, 2006, 01:02 AM

Quote:

Originally Posted by Jack Smith

Nic, I reread your post and it sounds like your saying the tape speeds up as it nears the start of the tape.Now I'm not sure but I swear mine sounds like it slows down the last few seconds.If it's correct that yours speeds up just before reaching the stop, I'd ask Canon about that.

If you have watched tape mechanisms rewind and fast forward, you'll see an apparent speed up towards the end on the supply spool and the take up spool will slow down. Think of it as a continuously variable transmission.

What actually happens is the spool speeds up but the tape is traveling at about the same speed or less because of this ever changing gear ratio. Unless the machine has the end approach motor slow down like lots of later model VCR's have.

Kind of reminds me of watching the 16mm film projector rewinding in school. By the time the end of the film came off the reel, it was spinning pretty doggone fast.

-gb-

Don Palomaki · July 22nd, 2006, 04:52 AM

Kind of off topic but when did schools stop using 16mm film and 35mm film strip projectors and switch to video tape?

Jack Smith · July 23rd, 2006, 12:44 AM

Right Greg, what my point was is that it appears my XL1S does the slow down by motor control as do the some of my tape (svhs) decks do.Does anyone else find the same and if so,Nic might mention that to the service department.
Don,I think it was 40 years ago.Well.......... maybe some still use film.

Nic Maguire · July 23rd, 2006, 01:41 AM

Hi again thanks to all for their helpful comments. i have put the camera into Canon but i will chek back with them tomorrow regarding this question posed by Jack no worries thanks.

Quote:

Originally Posted by Jack Smith

Right Greg, what my point was is that it appears my XL1S does the slow down by motor control as do the some of my tape (svhs) decks do.Does anyone else find the same and if so,Nic might mention that to the service department.
Don,I think it was 40 years ago.Well.......... maybe some still use film.

July 18th, 2006, 07:07 AM	#1
Nic Maguire New Boot Join Date: May 2006 Location: Australia Posts: 24	Another Newbie Question: Tape problems when rewinding Hi there again. I have noticed occasionally just at the end of rewinding a DV tape after filming right towards the end as it speeds up the tape before it finishes rewinding it sometimes chews or gets caught up. I am not sure if it is getting caught up in the machine or it is the tape itself as the tape when removing it from the camera looks like it has got caught on something when the rewind process has finished. The last time this occurred i forwarded the new DV tape to 5 mintues out and it filmed as normal and upon rewinding back to the 5 minute mark i didnt encouter this problem only when it rewinds right back to the end as mentioned above. Has anyone encountered this problem before as the Canon techs i contacted have never heard of this problem before they only guessed it could be a possible alignment problem with the camera?. I have used Panasonic or JVC brand DV tapes so far??.

July 22nd, 2006, 04:52 AM	#6
Don Palomaki Wrangler Join Date: Sep 2001 Location: Northern VA Posts: 4,487	Kind of off topic but when did schools stop using 16mm film and 35mm film strip projectors and switch to video tape? __________________ dpalomaki@dspalomaki.com

July 18th, 2006, 09:00 PM	#2
Jack Smith Major Player Join Date: Nov 2003 Location: ontario Posts: 445	Any time a tape machine chews a tape,I would suspect either contamination of either the tape and/or the machine(dirty) or a component worn or misaligned.If has happened with more than 1 tape,I would suggest sending it in for service to find out.I personally use a rewinder to rewind and only rewind before capture.My old vtr's use to slow down as the tape approached the end of travel.I wish all tape machines did that.

July 21st, 2006, 11:30 PM	#4
Jack Smith Major Player Join Date: Nov 2003 Location: ontario Posts: 445	Nic, I reread your post and it sounds like your saying the tape speeds up as it nears the start of the tape.Now I'm not sure but I swear mine sounds like it slows down the last few seconds.If it's correct that yours speeds up just before reaching the stop, I'd ask Canon about that.

July 23rd, 2006, 12:44 AM	#7
Jack Smith Major Player Join Date: Nov 2003 Location: ontario Posts: 445	Right Greg, what my point was is that it appears my XL1S does the slow down by motor control as do the some of my tape (svhs) decks do.Does anyone else find the same and if so,Nic might mention that to the service department. Don,I think it was 40 years ago.Well.......... maybe some still use film.