BJP 17 March 1988-reciprocity article

[rhodej00]

I don't suppose anybody has a copy of the British Journal of Photography dated the 17 March 1988.
There is an excellent article on reciprocity failure by Derek Keeling. I am after trying to get a copy of the article as my copy has got lost over the years.
I used the data from his article when I worked with Tmax 100 sheet film and long exposures (minutes long) in the past.
I want to use his data for colour film as I have just bought a Lee Filters Little Stopper which requires a 6 stop increase of exposure.
Can anyone help?
The BJP want £15 for an old copy which is a lot when I am only interested in a single article.

[Rob Cole]

Hi John,

I have the Kodak Technical datasheet for 'Reciprocity and Special Filter Data for KODAK Films' which I could email to you if you wish.

Rob

[rhodej00]

Rob I would find that of interest. My email is johnrhodes934@btinternet.com. I will email the article of DerekKeeling if I manage to get a copy. I think you would find it interesting. John

[michaelfinch]

John, if you Google T-Max the Kodak site may help. It gives exposure compensation and adjusted dev times.
Cheers

[Martin Jan Köhler]

Hi,

here's the data sheet:
http://www.kodak.com/global/en/professi ... /f4016.pdf

On page 5 it says for TMax 100:
Below 1s ... no correction (except +1/3 for crazy exposures shorter then 1/10000 of a second)
1s ... +1/3 stop
10s ... +1/2 stop
100s ... +1 stop

Best regards,
Martin