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

Go Back   DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon HDV and DV Camera Systems > Canon XL and GL Series DV Camcorders > Canon XL1S / XL1 Watchdog

Canon XL1S / XL1 Watchdog
Can't find it on the XL1 Watchdog site? Discuss it here.


Reply
 
Thread Tools Search this Thread
Old July 18th, 2006, 08:07 AM   #1
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??.
Nic Maguire is offline   Reply With Quote
Old July 18th, 2006, 10:00 PM   #2
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.
Jack Smith is offline   Reply With Quote
Old July 18th, 2006, 10:47 PM   #3
New Boot
 
Join Date: May 2006
Location: Australia
Posts: 24
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.
Nic Maguire is offline   Reply With Quote
Old July 22nd, 2006, 12:30 AM   #4
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.
Jack Smith is offline   Reply With Quote
Old July 22nd, 2006, 02:02 AM   #5
Wrangler
 
Join Date: Oct 2003
Location: DFW area, TX
Posts: 6,108
Images: 1
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-
Greg Boston is offline   Reply With Quote
Old July 22nd, 2006, 05:52 AM   #6
Wrangler
 
Join Date: Sep 2001
Location: Northern VA
Posts: 4,298
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
Don Palomaki is offline   Reply With Quote
Old July 23rd, 2006, 01:44 AM   #7
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.
Jack Smith is offline   Reply With Quote
Old July 23rd, 2006, 02:41 AM   #8
New Boot
 
Join Date: May 2006
Location: Australia
Posts: 24
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.
Nic Maguire is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon HDV and DV Camera Systems > Canon XL and GL Series DV Camcorders > Canon XL1S / XL1 Watchdog

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 12:33 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network