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ETERNA 250
35mm Type 8553
16mm Type 8653
ETERNA 250 Tungsten Balanced Film
Exposure Index
| Daylight | 160 (with Fuji light balancing filter LBA-12 or Kodak daylight filter No 85) |
|---|---|
| 3200 K tungsten lamps | 250 |
Numbers are for use with exposure metres marked for ISO/ASA speeds. Please note, however, that recommended exposure indexes may not apply due to differences in exposure metres, how they are used, and processing conditions. For best results, test exposures should be made based on instructions for the exposure metre to be used.
Colour Balance
ETERNA 250 is colour balanced for tungsten light (3200K), and requires no filters for use in these conditions. When shooting outdoors in daylight or under other light sources, the following conversion filters and exposure adjustments should be made.
| Light source | Filter | Exposure index |
|---|---|---|
| Tungsten light | None | 250 |
| Daylight (sunlight & skylight) | Fuji filter LBA-12 or Kodak daylight filter No 85 | 160 |
| Metal halide lamps (e.g. HMI) | Fuji filter LBA-12 or Kodak daylight filter No 85 | 160 |
| Ordinary fluorescent lamps | ||
| White light type | Fuji filter CC-30R or Kodak filter CC30R | 125 |
| Daylight type | Fuji filter LBA-12 or Kodak daylight filter No 85 | 160 |
| Three-band fluorescent lamps | ||
| White daylight type (5000K) | Fuji filter CC-30R or Kodak filter CC30R | 125 |
| Daylight type (6700K) | Fuji filter CC-40R or Kodak filter CC40R | 100 |
These filter recommendations will provide approximate colour temperature coversion. Final colour correction should be done when printing.
Reciprocity Characteristics
ETERNA 250 requires no filter corrections or exposure adjustments for shutter speeds of 1/1000 to 1/10 second. For exposures of 1 second, open the lens 1/3 of a stop.
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 250 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
The MR code system [edge number, film identification mark (FN53), and machine-readable bar code for each, film name (FUJI 250), emulsion number, roll numer, frame marks (4 perforations apart for 35mm film; no frame marks for 16mm film)] 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
| ET250 | 3200K 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 250 Daylight 160* | ||||||
* With Fuji LBA-12 Filter or Wratten No 85
