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This topic comprises 2 pages: 1 2
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Author
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Topic: Lab splices for the inexperienced
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Kenneth Wuepper
Phenomenal Film Handler
Posts: 1026
From: Saginaw, MI, USA
Registered: Feb 2002
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posted 07-21-2002 05:37 AM
Mark,
The only "dumb" question is the one that is not asked.I am happy to share any constructive knowledge that I can with anyone who wishes it. I have retired from many occupations but, as my wife says, "You can get the boy out of the theatre but you'll never get the theatre out of the boy!" KEN
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Josh Jones
Redhat
Posts: 1207
From: Plano, TX
Registered: Apr 2000
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posted 07-21-2002 01:05 PM
The reason labs splices exist is because(as already stated) rolls of raw(or blank) stock come in predetermined lengths, usually 2000 or 6000 feet. Every reel printed at the lab is not 2000 feet in length, so to prevent waste, the laboratory uses the short pieces of stock to save cost. The reason a lot of lab spices are out of frame is because the splices are made in raw, not processed stock. Because there are no framelines in blank stock, as well as the fact that the splice must be made in near darkness, it is impossible to hit the frameline 100% of the time. Hope I helped answer a few questions  Josh ------------------
"Film is made of silver, video is made of rust"
'nuf said
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John Pytlak
Film God
Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
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posted 07-22-2002 08:32 AM
Nice summary Josh!Most of the labs making release prints purchase the film as either 4000-foot or 6000-foot lengths. Few reels are exact increments of these lengths, so there is usually a "short end". Several release print labs now use printers that "loop" the picture and sound negatives, and use feed-on and take-off "elevators" to allow splicing on raw stock print film without stopping the printer. These ultrasonic "lab splices" are made in darkroom conditions, and may fall anywhere within a reel. Assuming 2000-foot reels printed onto 6000-foot raw stock rolls, on average, one reel out of three will have a lab splice. If you receive a reel with more than one lab splice, it may be that the "short ends" were spliced together off-line before being printed on a non-loop printer. Here is what the Association of Cinema and Video Laboratories (ACVL) has to say about lab splices:
http://www.acvl.org/4c.htm Discoloration around a raw stock splice is caused by excessive exposure to the "safelight" used to help the operator see the splicing operation. Safelight "fog" is usually cyan or blue in color. Request a replacement reel if there is excessive fogging (visible on screen or interferes with reading soundtracks). ------------------
John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Entertainment Imaging
Research Labs, Building 69, Room 7525A
Rochester, New York, 14650-1922 USA
Tel: +1 585 477 5325 Cell: +1 585 781 4036 Fax: +1 585 722 7243
e-mail: john.pytlak@kodak.com
Web site: http://www.kodak.com/go/motion
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