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Eastman Ectachrome hyperspeed film, intended for photography under artificial light

EASTMAN EKTACHROME ER FILM TYPE B Types 5258 (35) MM & 258 (16) MM.

It is a very fast sensitive reversal film, intended for use inside the camera film for shooting under tungsten lamps when the light conditions are not suitable for using other colored reversal films. After displaying this film, the original is fit for viewing either directly, or - if necessary - it can be printed in order to obtain multiple release prints according to the aforementioned party referred to on page 254 regarding the Eastman Ectachrome commercial film.

Identification Codes: A latent image read after Ektachrome Safety Film, followed by numbers denoting the lengths in feet.

Sensitivity speed: ASA when shooting during the day with a Kodak 85 Wratten filter 125 ASA when shooting under tungsten lamps Temperature

Its color is 3200 Kelvin (without a filter).

100 ASA when photographing under photoluminescent lamps or lamps with a color temperature of = 3350 K, which is a condition that calls for the use of a Kodak Wratten 81 A filter. In the following table, we show the diameter of the apertures suitable for the amount of incident radiation when using this film in the light of tungsten lamps, assuming that they are The speed of the second cinema camera, i.e. an average exposure speed = no of a second. . 24 photos

6 Rah

Slot diaphragm f. No

The amount of incident light in feet Foot Candle

70

Similar to what we mentioned regarding the previous sister film (S. 256), it is possible that the speed of sensitivity will double if the duration of the first exposure is increased, but the increase in sensitivity will also result from it on the other hand, a decrease in the maximum density, and a decrease in the tolerance of the film.

And a slight increase in particle size