Rollie IR400 Reciprocity

Film Photography & Darkroom discussion

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Rollie IR400 Reciprocity

Post by n2hhr »

Surely, someone has the true Reciprocity data for IR400! I have only found 1 chart out there and the values are too high to be believed

1m needs 9m
1m 40s needs 22 min
2 m needs 35 m

There really should be better info out there!

If you have any data please let us know

I want to do up to 10 m exposures along the ocean. Perhaps there is another better film for long exposures Ruth better Reciprocity values. Could any of you suggest a better film? I will be using

Mark Hilliard

Markhilliardatelier ate

Mark Hilliard

Keith Tapscott.
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Re: Rollie IR400 Reciprocity

Post by Keith Tapscott. »

It's something you will have to experiment with and bracket the exposures to find out.
I have never heard of the developer. Sorry if that's not much help.

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