Efke IR 820 - Expired/Longevity

[Cor]

The important thing is to know that very few things emit IR in the wavelengths detectable by any film such as the sun, tungsten bulbs, flashes, that's about it, so it's pretty much the same as visible light sources.

I seem to recall a Kodak publication were they used HIE IR film to register the heat of 2 clothing irons which were put at max power..they were indeed looking normal with a standard B&W film, but very white on IR film..

Best,

Cor

 

[VaryaV]

Well, I did learn one thing..... never, ever, EVER, squeegee EFKE film!

 

[RobertV]

Well, I did learn one thing..... never, ever, EVER, squeegee EFKE film!

No because your emulsion will come off.

Efke, former Dr. Schleussner/Adox films are made according 50's film technique so touching this wet type of emulsion is a death sinn. You also have to take more care about the temperature of the chemicals themselves.

So next time keep it around 20C and after the wetting agent put the film diagonal in the first minutes to dripp of the wetting agent on the edges and then let it dry (vertical) without touching anything.