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 Unknown on 5th Dec 2024
We bought this twice, first in the one liter and second time in the "one gallon." Developer worked great but the instruction for mixing the "one gallon" was slightly unclear since it is really 4 liters but not a gallon, which is 3.78 liters. Yes, slight difference but in the case of developing chemicals, almost 250ml of liquid would make quite big of a difference. Also, most US liquid containers are for one gallon, which was what we used, but could not hold 4 liters so that created a big hassle where we had to dilute separately. It would be a good idea to fix the discrepancy between the packaging, which clearly states it is for "one gallon" and the actual chemical and instruction inside, which is really meant for 4L of working solution.
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.