2001-06-17
> As you can see, Edison is credited with the standard four perforations per
> frame, as opposed to the single perforation per frame of the Lumi�re
> brothers' product. Could it be that Edison used what was available (34.8
> mm/1.375") and worked in metric on the other axis (and for the frame
size)?
>
> The mystery deepens.
>
> Bill Potts, CMS
> Roseville, CA
> http://metric1.org [SI Navigator]
>
>
I'll repeat what I printed in a previous posting. 34.8 is derived from
1-3/8 only if 1.37 and not 1.375 is multiplied by 25.4
1.37 x 25.4 = 34.798 mm = 34.8 mm
1.375 x 25.4 = 34.925 mm = 34.9 mm
1.38 x 25.4 = 35.052 mm = 35.0 or 35.1 mm (truncate or round).
For all practical purposes, these are all 35 mm.
These websites must be passing around the same false information. Someone
should send them a message pointing out their error. And I highly doubt
that the technology of 1889 was to the point where the difference of 35 mm
and 1.375 in would be noticed in film.
John
Keiner ist hoffnungsloser versklavt als derjenige, der irrt�mlich glaubt
frei zu sein.
There are none more hopelessly enslaved then those who falsely believe they
are free!
Johann Wolfgang von Goethe (1749-1832)
