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EFKE (Fotokemika)

efke 25

Nominal ISO 250
B&W negative B&W Discontinued

Development times

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Showing 2 of 2 published times.

Developer Dilution EI Temp Time Agitation Source
Fomadon Excel W27 stock 250 20.0 °C 5:30 —
Verified Datasheet
Fomadon R09 1+50 250 20.0 °C 8:00 —
Verified Datasheet

Development times by developer

2 developers

EFKE (Fotokemika) efke 25

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Specification

Base
Acetate
Emulsion
—
Spectral sensitivity
—
Grain (RMS)
—
Resolving power line pairs / mm
—
Maximum density
—
Latitude over
—
Latitude under
—
First released
1974
Discontinued
—

A dash means the figure has not been read off a datasheet. Nothing here is estimated.

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Notes on how this behaves in practice — what it does in the field is worth as much as what the datasheet says.

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Written by photographers, under their own profile — so you can see what they shoot before you weigh what they say.