EFKE

EFKE KB-25 AND EFKE R-25

KB-25 and R-25 are orthopanachromatically sensitized thin-layer black-white negative films of very fine grain, which proporties together with the coinciding grade provide the highest possible edge sharpness. KB-25 and R-25 resolving power is 115 lines per milimetre. These films find their applications particularly in technical and professional photography. Sensitivity of Efke 25 is 14 DIN (20 ASA, ISO 20/14° GOST 18), but by developing in coinciding developers effecting Efkes sensitivity utilization may be even twice increased to 100 ISO.

SPECTRAL SENSITIVITY EFKE KB/R 25



Development information

EFKE 25
DEVELOPER	DILUTION	ASA/ISO	TIME	TEMP
Aculux 2	1+14	25	6	20
FR-16	1+19	25	3	20
Acutol	1+14	25	5	20
Acutol	1+15	50	8	20
FX-39	1+9	25	4	20
Rodinal	1+25	25	4	20
Rodinal	1+50	25	8	20
T-Max	1+4	25	5	20
D-76	1+3	25	10	20
Calbe R09	1+40	25	6	20

EFKE KB-50 AND EFKE R-50
KB-50 and R-50 are orthopanachromatically sensitized thin-layer black-white negative films. Efkes thin-layer photographic emulsion, fine-grain structure and coinciding contrast grade provide high edge sharpness and possibility for making large enlargements. Resolving power is 105 lines per milimetre. Sensitivity of Efke 50 is 17 DIN (40 ASA, ISO 40/17°, GOST 35), but by developing them in adequate developers films sensitivity utilization may be even twice incrased to 200 ISO.

SPECTRAL SENSITIVITY EFKE KB/R 50



Development information

EFKE 50
DEVELOPER	DILUTION	ASA/ISO	TIME	TEMP
Aculux 2	1+14	50	7	20
FR-16	1+19	50	3.5	20
Acutol	1+14	50	6	20
Acutol	1+15	100	10.5	20
FX-39	1+9	50	5.5	20
Rodinal	1+25	80	5	20
Rodinal	1+100	50	18	20
T-Max	1+4	50	6	20
D-76	1+1	50	9	20
Calbe R09	1+40	50	9	20

EFKE KB-100 / EFKE R-100 / EFKE PL-100M

KB-100, R-100 and PL-100M are high panachromatically sensitized black-white negative films. A thin layer of the photographic emulsion and fine grain structure provide high edge sharpness of negatives. Black-white sheet negative film EFKE PL-21M, which is of the same characteristics as the Efke KB-100 and Efke R-100, is primarly intended for portraiture photography, advetisement photography etc. Efkes harmonized panchromatic sensitization is guarantee that these films may be equally successfully applied with daylight and artificial illumination. Resolving power of 100 ISO films is 90 lines/mm. Films sensitivity is 21 DIN (100 ASA, ISO 100/21°, GOST 90), but by developing them in adequate developers Efkes speed utilization may be even twice increased to 400 ISO.

Development information

EFKE 100
DEVELOPER	DILUTION	ASA/ISO	TIME	TEMP
Aculux 2	1+14	100	10	20
FR-16	1+19	100	4	20
Acutol	1+9	100	9	20
Acutol	1+20	200	22	20
FX-39	1+9	100	7	20
Rodinal	1+25	100	6	20
Rodinal	1+50	200	14	20
T-Max	1+9	100	6	20
D-76	1+1	100	10	20
Calbe R09	1+40	100	13	20