Reciprocity and Intermittency failure in enlarging paper.

There is a new application note on reciprocity and intermittency effects in photographic paper on the Darkroom Automation web site support page.

The results of tests with Ilford MGIV show no reciprocity or intermittency failure.

Nicholas, interesting reading, one question though. How is the timer adjusted so you can allow a 50-millisecond warm-up time, for the enlarging globe?

The possibility of allowing extra time for the globe to warm-up, has never occurred to me before. I just took it for granted, one had to allow a fraction of a stop using guestimation and experience.

Mick.

Mick Fagan said:

How is the timer adjusted so you can allow a 50-millisecond warm-up time for the enlarging globe?

Click to expand...

http://www.darkroomautomation.com/support/AppNotePH212LampDelay.pdf

Very interesting, thank you.

Mick.