effect of time/temperature on film development?

Hello everybody,

I was wondering (may be beginner's question) how does the time/temperature
couple affect the development of a film. I was looking at Ilford tables
where it seems that one could achieve the "same" (?) development of a film
in a temperature range from 17 to 26C (adjusting the time for it).

Is there any change in grain size, contrast or other when moving along a
temperature/time line?

Thanks,
--
Emmanuel

In article <ThXNb.2944$zm5.1669@nntpserver.swip.net>,
"E Colar" <ecolar.DeleteThis@hotmail.com> wrote:

 > Hello everybody,
 >
 > I was wondering (may be beginner's question) how does the time/temperature
 > couple affect the development of a film. I was looking at Ilford tables
 > where it seems that one could achieve the "same" (?) development of a film
 > in a temperature range from 17 to 26C (adjusting the time for it).
 >
 > Is there any change in grain size, contrast or other when moving along a
 > temperature/time line?
 >
 > Thanks,

No, the grain structure and contrast would be the same from one end of
the chart to the other. However, if the time is very short at the hot
end of the scale, uneven development can occur if agitation is not
performed correctly.<!-- ~MESSAGE_AFTER~ -->