Formulary Substitute D-19

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.

Tech Info

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