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ETERNA 250D
35mm Type 8563
16mm Type 8663
ETERNA 250D Colour Negative Film
Exposure Index
| Daylight | 250 |
|---|---|
| 3200 K tungsten lamps | 64 (with Fuji filter LBB-12 or Kodak filter No 80A) |
Numbers are for use with exposure meters marked for 150/ASA speeds. Please note, however, that recommended exposure indexes may not apply due to differences in exposure meters or the way they are used, or variations in processing conditions. For best results, test exposures should be made based on instructions for the exposure metre to be used.
Colour Balance
ETERNA 250D is colour balanced for daylight, eliminating the need for filters in these conditions. When shooting under other light sources, use the conversion filters and exposure adjustments listed here.
| Light source | Filter | Exposure index |
|---|---|---|
| Daylight (sunlight & skylight) | 250 | |
| Tungsten light | Fuji filter LBB-12 or Kodak filter No 80A | 64 |
| Metal halide lamps (e.g. HMI) | None | 250 |
| Ordinary fluorescent lamps | ||
| White light type | None | 250 |
| Daylight type | None | 250 |
| Three-band fluorescent lamps | ||
| White daylight type (5000K) | None | 250 |
| Daylight type (6700K) | None | 250 |
The above filter recommendations should provide approximate colour conversion. Final colour correction should be made when making prints.
Reciprocity Characteristics
Fujicolor negative film ETERNA 250D does not need lens opening adjustment nor filtration to avoid a shift of colour balance when used with shutter speeds of 1/1000 to 1/10 second. When the exposure time is 1 second, use 1/3 stop larger lens opening.
Film Base
Film is coated on a triacetate safety base. The film base has been tinted light cyan to prevent fogging of ends that can occur when loading spools of film into the camera in light.
Safelight
This film should be handled in total darkness.
Processing
ETERNA 250D can be processed with Process ECN-2 and formulas published by Eastman Kodak for Eastman Color Negative Film. In the bleaching step, persulfate bleach, ferricyanide bleach or PDTA-ferric blach (UL bleach) can be used.
Edge Markings
MR code system [key number, film identification mark (FN63) and machine-readable bar code for each; film name ETERNA 250D, emulsion number, roll number, frame marks (5, 8, 15 perforations apart for 65mm film, 4 perforations apart for 35mm film, no frame marks for 16mm film) etc.] is printed as latent images.
Handling of Exposed Film
Exposed film should be processed as soon as possible. If exposed film cannot be processed within one week of exposure, it should be stored at temperatures below 10C (50F) and processed as soon as possible.
Foot Candle Table
| ET250D | 6000K 24 FPS | ||||||
|---|---|---|---|---|---|---|---|
| Aperture T/ | 1.4 | 2 | 2.8 | 4 | 5.6 | 8 | 11 |
| Foot-Candles | 10 | 20 | 40 | 80 | 160 | 320 | 640 |
| Speed | Tungsten 64* Daylight 250 | ||||||
* With Fuji LBB-12 Filter or Wratten No 80A
