Efke films are manufactured using classic emulsions with very
high silver content. This results in a large grayscale reproduction. The
Efke 25, 50 and 100 films are made using the ADOX formulas that were
first introduced back in the late 1940s.
Unlike modern flat crystal films, which are very unforgiving to use, these films allow beginners to produce quality images. The nature of the film also easily allows large, grain free, enlargements to be made from negatives.
If exposed to film's regular speed of ISO 25, the following developing times apply:
Kodak D76/ID-11 = 6 Minutes
If ISO 25 film is exposed to ISO 50 for increased speed and optimum differentiation of highlights, the following developing times apply:
Kodak D76/ID-11 = 8-9 Minutes
|Speed (ISO)||25 ISO|