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Getting highest contrast image out of Tri-X


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#1 Eric Dinger

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Posted 09 May 2006 - 10:26 PM

How would one go about getting the highest contrast image out of Tri-X (7266). I want to do it in camera or with processing.
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#2 Chris Keth

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Posted 09 May 2006 - 11:41 PM

How would one go about getting the highest contrast image out of Tri-X (7266). I want to do it in camera or with processing.



Well, lighting it that way is the first step and the best way to get contrast. Another possibility is pushed processing. Yet another possibility is to use filters to darken certain colors, creating greater contrast. The answer is probably some conbination of these, but I would look into just lighting for contrast first.

Edited by Christopher D. Keth, 09 May 2006 - 11:42 PM.

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#3 John Pytlak RIP

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Posted 10 May 2006 - 08:46 AM

How would one go about getting the highest contrast image out of Tri-X (7266). I want to do it in camera or with processing.


Here is the technical data for 7266:

http://www.kodak.com....4&lc=en#curves

Here are the processing specifications:

http://www.kodak.com...h2415/h2415.pdf

The B&W reversal process generally is not adjusted to change contrast --- to change contrast, the second developer would need to be run off specification. Changing the first developer time in a reversal process generally affects speed more than contrast.

So most of what you need to do to get the highest contrast image would be in lighting and filtration. Lighting ratio can certainly affect the contrast of the final image. Likewise, pola filters can be used to enhance contrast, and colored filters can be used to better separate the tone scale for various colors (e.g., using a red filter to enhance white clouds against a cyan sky).

Of course, if you are transferring or scanning the film, you can enhance the contrast in post production.
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