by "ttyymmnn" (ttyymmnn)
Published 03/13/2017 at 14:03
by "ttyymmnn" (ttyymmnn)
Published 03/13/2017 at 14:03
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STARS: 7
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From the era of black and white silent movies, here is some test footage of silent film stars using early Kodachrome film. Note how the actresses are still using the affected gestures of the period. What is also interesting to note is how the early film handled colors of different wavelengths. Red is brilliant, while blue, on the opposite end of the spectrum, is almost nonexistent.
"jimz" (jimz)
03/13/2017 at 14:06, STARS: 1
blue has always been a problem. even now. how long were LEDs around before blue ones were invented? And on OLED displays, the blue sub-pixels have the shortest lifespan.
"Demon-Xanth knows how to operate a street." (demon-xanth)
03/13/2017 at 14:22, STARS: 2
LEDs were due to a chemistry deal. The originals were amber due to the natural material that they were discovered from, silicon carbide, while the red ones used gallium arsenide. Greens came in from gallium phosphide. Indium gallium nitride allowed blue ones, which white were created from by adding phosphors to add in the red and yellows.
"Aremmes" (aremmes)
03/13/2017 at 15:03, STARS: 2
Kodachrome always had a bias towards longer wavelengths. The few shots I took with Kodachrome 64 in the early noughties have a strong yellow cast due to that since I didn’t use any filters to account for it.
I should also note that the missing blues could’ve been caused by improper chemistry during the development process. Since Kodachrome didn’t carry dyes in the emulsion, it depended on the developer to add the dyes after exposure. Given that this film was part of Kodak’s testing, I’d say they had not yet completely figured out the blues at that point.
Looking in Google now, the first Kodachrome actually used only a two-color substractive process, very different from the later processes.
"gmporschenut also a fan of hondas" (gmporschenut)
03/13/2017 at 23:17, STARS: 0
AH i always wondered why red and yellows stuck out so much.