Quote Originally Posted by kintatsu View Post
Developing by inspection is definitely not worth the effort except for the most difficult of negatives, at least for me. Accurately judging densities in the dark is too tricky for me.

Plus, the heightened sense of anticipation in the dark is quite rewarding when you finish without peeking!
I didn't advocate development by inspection, but when thinking about slides to be enlarged in Ilfochrome process, I would be much more willing to try contrast masks if I was able to see the setup while I create the mask. See my reference to Michel R.'s posting.

And to those claiming that orthochromatic film has other tonal characteristics than pan film: the orthochromatic emulsions you get today are very special in their characteristics since they don't seem to have been formulated for general purpose photography. This doesn't mean that orthochromatic films necessarily have certain tonal characteristics which can't be reproduced in a panchromatic emulsion.