Would you compensate for 20 year expired Efke 25?

[shead]

I just loaded a roll of Efke KB 25 BW film in a FED-2 Soviet rangefinder that has reliable and accurate shutter speeds. At ISO 25 but with poorly stored film (just kept out on a desk in an upstairs room that hovers around 78-84F in the summers), would you anticipate degradation and compensate by exposing differently? If so, how much should I adjust from my metered ideal? I am still learning about film, though I've been shooting on it for decades, but never really learning about emulsions sensitivity, the effects of time and temperature, pushing and pulling and so on. Help a fella out. Thanks!

 

[nosmok]

No EFKE-head here, but my experience with Kodak film would lead me to say, overexpose it by one stop.

 

[braxus]

Its fine at 25 if it was kept cool. I have a good stash of this film and it keeps well if in the freezer. If its been in room temps all that time, then yeah maybe a stop extra. Slow films dont degrade hardly much at all over decades, as far as B&W is concerned.

 

[xkaes]

Test it. Take 1-3 exposures (ISO, 25, 12, 6) and develop normally. Retest if needed.