16mm Frames Per Foot

Published : 4th June 2004


Hi All :

Momentary brain freeze.

I'm trying to calculate time-lapse film consumption and I want to check my facts.

16mm film contains 36 frames in each foot, right?

If I'm wrong, I'm going to blame my expertise in Digital filmmaking for making me forget

Thanks

Joe Di Gennaro
Director of Photography
North Hollywood, CA



Joe Di Gennaro wrote :

> 16mm film contains 36 frames in each foot, right?

40

Jeff Kreines



Thank you...

Now I can do my math and go to bed...it's been a little too long between jobs with sprockets...

Thanks..

Joe Di Gennaro



Joe Di Gennaro wrote:

>thank you...now I can do my math and go to bed...it's been a little too long between >jobs with sprockets…thanks..

Time to replace the blue belt inside your CP16R, Joe -- they rot every few years...and can cause damage when they disintegrate.

Jeff "has a couple of CP16s" Kreines



Kodak has a very handy on-line "Film Calculator" that calculates running time, film length, etc., for almost every current film format and frame rate. Here's the link :

http://www.kodak.com/US/en/motion/support/index.jhtml

John Pytlak
EI Customer Technical Services
Eastman Kodak Company



Joe Di Gennaro wrote:

>16mm film contains 36 frames in each foot, right?

Forty frames per foot, as Jeff said. However, the number 36 is also relevant and maybe why it stuck in your mind. That's how many feet of 16mm film run through the camera every minute when you're rolling at 24-frames/sec. For 35mm it's sixteen, 4-perf frames per foot -- 90 feet per minute at 24 fps.

Handy numbers to remember when you're calculating shooting ratios.

Don Ver Ploeg
VP Communications
Pittsford, NY



Joe Di Gennaro writes :

>16mm film contains 36 frames in each foot, right?

16mm :

40 frames per foot
36 feet per minute at sound speed (24fps).

35mm : (4-perf)

16 frames per foot
90 feet per minute at sound speed.

Cheers....

Dan "... or 35.964 feet per minute at 23.976fps" Drasin
Producer/DP
Marin County, CA



There is also a time-lapse calculation chart on page 893 of the ASC Manual, 8th Edition.

David Mallin
Cloudchaser Films
PO Box 170267
San Francisco, CA 94117


 

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