Quote Originally Posted by veedub472 View Post
Hi Thomas,

I think I see what you're getting at regarding the dynamic of the contrast filters - a half grade difference is a half grade difference wherever it's applied.

Would it be correct to say though that if you begin with more mid-tone detail on the negative (less gradient on the exposure curve) and then increased the contrast that you would retain more detail in the mid-tones than if you began with a steep gradient on the exposure curve and expanded that by decreasing contrast?

I agree all this is fascinating and for me being able to portray light the way silver prints do and being able to do this at home is quite an amazing thing.


A lower gradient doesn't imply more mid-tone detail.

If you're thinking about it in terms of curves, start with some basic sensitometry. It will help you get an understanding of film and paper characteristic curves, and the relationships between them. The path from exposure to film processing to print tonality is called tone reproduction. Both Kodak and Ilford have helpful primer publications on sensitometry and variable contrast printing.