And not just the triangle either. All of the various gradient measurements are based on no flare curves - the gradient for contrast index or the base point for average gradient. Then there's the subject of speed determination with a flare curve vs a non flare curve. This is an excellent example of the importance of contacting step tablets.
I've superimposed a contacted curve of TXT in Xtol 1:1 over the curves you generated. The CI is 0.64 using a modified version of CI.
ISO Triangle example.jpg
Last edited by Stephen Benskin; 08-29-2012 at 12:43 AM. Click to view previous post history.