This is a published formula originally designed for use with x-ray materials and is now recognized as an excellent developer for aero films and plates when high contrast is desired. D-19 Film Developer is a high-contrast developer used primarily for scientific applications with spectroscopic films and plates, high resolution plates and films like Tech Pan and high speed Infrared. D-19 provides higher than normal contrast and speed, higher than average graininess, high capacity, clean working and fast acting.
Click the word Tech Info for the instructions.
Posted by sam davis on 27th Oct 2017
I like using D-19 on infra-red film to get the big popcorn grain, and also on regular films for edgy high-contrast.
Posted by R. Dell. on 16th Dec 2014
Easy to follow instructions, every item clearly labelled. Highly recommended developer for super 8 and 16mm reversal black and white film.