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| | EFKE: Classic films for discerning photographers |
 | | 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. |
 | | 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 increased to 200 ISO. |
 | | 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, advertisement photography etc. Efkes harmonized panchromatic sensitization is guarantee that these films may be equally successfully applied with daylight and artificial illumination. |
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