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Re: rodinal developer for infrared

  • From: "J. Wayde Allen 303-497-5871" <allen@xxxxxxxxxxxxxxxx>
  • Subject: Re: rodinal developer for infrared
  • Date: Fri, 13 Sep 1996 12:22:52 -0600 (MDT)
On Fri, 13 Sep 1996 JoePaduano@xxxxxxx wrote:

> effectively changing the speed to 50 and 200 also. Each 1 stop increase
> doubles the film speed and each 1 stop decrease halves the film speed.

Film speed goes in 1/3 stop increments as I recall.  So a 1 stop change 
in exposure is equivalent to changing the film speed (ISO) by a factor of 
three.  Now I'll have to check to be sure.

- Wayde
  (allen@xxxxxxxxxxxxxxxx)


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Topic No. 17