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Film response curves: best choice?



 
 
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  #1  
Old June 26th 04, 05:38 PM
EColar
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Default Film response curves: best choice?

When comparing different film IL/density curves, I understood that some
films have a pretty extended density range (i.e. TMax100, HP5 and TriX) than
others (FP4, Delta100). Of course, each film being developed in its ideal
developer (ranging from TMax to Ilford DDX).

I guess that the paper response is also somewhat limited in range.

Therefore, my question is: is it better to work with an extended response
film or with a more limited one when looking for the maximum amount of
details?

I also guess that if the film density range exceed the paper on, the a large
amount of details, especially in the highlights, may be lost, so the
advantage of an extended response range film would also be lost; Resulting
simply in a more contrasted image in a limited film density range.

Thanks for your comments,

Emmanuel


  #2  
Old June 26th 04, 09:45 PM
Michael A. Covington
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Default Film response curves: best choice?

We normally use much less than the full density range of the film. We work
at the low-density (thin) end of the range in order to minimize grain.

What matters most is the shape of the curve, not its total extent.


  #3  
Old June 27th 04, 06:17 AM
EColar
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Default Film response curves: best choice?

If so, what would be the advantage of using a film with a pretty long
response range (sur as TMAX100) compared to using a shorter one (Delta100)?
Thanks,
Emmanuel

"Michael A. Covington" a écrit dans le message
de ...
We normally use much less than the full density range of the film. We

work
at the low-density (thin) end of the range in order to minimize grain.

What matters most is the shape of the curve, not its total extent.




 




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