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HOME > FILM > BRF-15
Film: BRF-15 Fine Grain Panchromatic Black and White
Film
BRF-15 is a panchromatic black and white
negative with utmost acutance and detail reproduction, and extreme fine
grain. Fine grain emulsion is coated above antihalation layer. Back counterpoise
layer.
Base
Safety base, polyester 100µ clear.
Storage and Handling
Raw stock : more than 12 months 13°C or lower. Recommanded
relative humidity : 50 to 70%
Process film promptly after exposure.
Processing and Characteristics
See below processing board to get recommended average
gradient of 0,65.
RMS granularity : an average value = or < 9. (read at a net visual
diffuse density of 1,0 above the minimum density)
Factor of modulation transfer function m50 : = or >0,70
Darkroom Lighting
BRF-15 should be processed in total darkness. If absolutely
necessary, a safe light an indirect 15 watt lamp can be used while processing,
having a Kodak safe light filter n° 3 or Ilford n° 908, but a
distance of at least 75 cm should be maintened.
Developer |
Minutes/Temperature
20°C/68°F |
Minutes/Temperature
24°C/75°F
| Exposure Index |
Kodak
D 76 |
6 |
5 |
ISO 15 |
Kodak
X-TOL |
6 |
5 |
ISO 15 |
Ilford
ID 11 |
6 |
5 |
ISO 15 |
Rodinal
(1+25) |
6 |
5 |
ISO 15 |
BER 49 |
5 |
4.5 |
ISO 15 |
Complaints
In case of a quality complaint, the defective material should be
returned to us marked with its emulsion number. Should the tests prove
the complaint to be well founded, the defective material will be replaced
free of charge. No further claims can be considered.
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