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We've added Ortho to our list of
films that can be emulated in the digital world. This was the film
of the 1900's and has a distinctive color palette.
Below is a history factoid from
http://www.filmreference.com/encyclopedia/Criticism-Ideology/Film-Stock-BLACK-AND-WHITE-AND-COLOR.html
"Until 1925, Hollywood studios used
orthochromatic Eastman Standard Negative stock. Orthochromatic film
was only sensitive to the brightest natural light, so large ultraviolet
lamps had to be used during shooting. It also registered only blue
light, so anything colored red showed up on the film as black. This
posed a problem for actors and actresses, whose flesh-toned faces
appeared darker than normal on screen. Thus began the practice of
using heavy white pancake makeup on the majority of screen personalities.
In 1922, Robert Flaherty shot his documentary Nanook of the North
on orthochromatic film stock, which beautifully accentuated the
harsh, colorless landscape.
In 1922, panchromatic film, which was sensitive
to all colors, became available for black-and-white filmmaking.
The hard-edged blue orthochromatic gave way to the softer gradations
of "pan," providing much more natural-looking visuals.
But the film industry was hesitant to switch formats, believing
orthochromatic was "good enough" to suit its purposes.
In 1926, Flaherty shot Moana, a documentary containing lush, tropical
scenery, using panchromatic film. It convinced Hollywood to make
the change, and by 1930, orthochromatic film manufacturing had been
discontinued."
Ortho film was used during World War 1 to
photograph all the planes and weapons of war. People who want to
document their model recreations of classic aircraft and reproduce
that peculiar Blue feeling have to use this filter.
Ortho is still in production and
is used for copying and for the medical professions.
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