8mm Forum: 16mm Screen Sizes

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Topic: 16mm Screen Sizes

Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted June 01, 2014 02:47 PM

A recent question was for a screen size for a given throw. The standard lens on a 16mm sound projector is a 2" (50mm) so here are the sizes of screen as opposed to projection distance to screen using this lens. Note that the given screen size is the standard ratio of 4:3.

10.5 throw in feet = screen size of 2' x 1.5'
21.0 throw in feet = screen size of 4' x 3'
31.5 throw in feet = screen size of 6' x 4.5'
42.0 throw in feet = screen size of 8' x 6'
52.5 throw in feet = screen size of 10' x 7.5'
63.0 throw in feet = screen size of 12' x 9'

With a 2x anamorphic (and the 2" backing lens) the screen width is doubled whereas the height remains the same.

[ June 02, 2014, 09:52 AM: Message edited by: Maurice Leakey ]

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Maurice

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Paul Mason
Jedi Master Film Handler

Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013

posted June 02, 2014 06:14 AM

Maurice,
I believe that your throw for a ten ft screen should be 52.5 ft.

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Paul.

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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted June 02, 2014 09:53 AM

Thank you, Paul. Yes, my error. The table has now been corrected.

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Maurice

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