Efke roll films are coated on a polyester base (100 microns plus coating)
Type
135 mm black and white negative film
Speed
ISO 100
Applications
Fine-grain prints
Process
Treat the wet emulsion with extreme care; Efke recommends the use of hardener in the stop bath or fixer; Never use a stop-bath with a higher concentration than 2% -- in fact, Efke recommends the use of plain water in place of a stop bath; If exposed to film's regular speed of ISO 400, the following developing times apply: Kodak D76/ID-11 = 7.5 Minutes; If ISO 400 film is exposed to ISO 800 for increased speed and optimum differentiation of highlights, the following developing times apply: Kodak D76/ID-11 = 10.5 Minutes
Color Saturation
Not applicable
Grain
Fine
Sharpness
High
Exposure Latitude
Wide
Push/Pull
Do NOT over-expose Efke Emulsions; This film is not recommended for pull processing