Kodak Professional D-76 Film Developer (To Make 1 gal)

The official shelf life for Kodak Professional D-76 Film Developer in liquid form is 6 months in a closed bottle; it is usually good for a bit longer than that.

Of course.

Kodak told me not to use the brown powder/mixture and are sending me a new bag.

Personally, none. It's not worth the bother under most circumstances, and you get more consistent, reliable performance with one-time use. I used the 1:1 dilution for the best results, even in the professional custom photo-finishing labs I designed and managed in the '80s.

Kodak D76 is not intended to develop paper. I would not recommend it. The developing times Kodak lists is only for film. It would require DIY to get the correct times for paper.

According to Steve Anchell’ Darkroom Cookbook (4th Ed.) Kodak says that one roll of 35 mm film is 80in2 and only takes 150mL of developer. However, Anchell suggests that far better results are found by using a minimum of 250mL of undiluted developer and even better results are found using 500mL. That being said 1 gallon of D-76 is 3.785L or 3785mL. Therefore 3785/500 = 7.6 rolls. If you are using 1:1 D76:H2O then about 16 rolls. Attempting to reuse D-76 is a bad idea.

Have to make entire gallon all at once. Keep stock mix in separate container then just pour out only what you need for each film processing.

Hi, in this powdered form, you should keep it in a cool, dry place, but the temperature is not critical.From 50 to 70 degrees F is fine.