MadSci Network: Chemistry

Subject: Grain Size of Photographic Film?

Date: Wed Oct 14 20:41:35 1998
Posted by David Slavin
Grade level: nonaligned
School: No school entered.
City: Louisville State/Province: CO
Country: USA
Area of science: Chemistry
ID: 908415695.Ch

I have been trying to find the average grain size of 35mm color film 
as a function of ISO number on the WWW with no luck.

I would like to compare the number of grains in film to the number of 
pixels for electronic cameras so I can gauge the difference in 

I have learned that grain size can be affected by how the film is 
exposed and processed, but I was wondering if you could give me a ball 
park estimate.


Re: Grain Size of Photographic Film?

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