The Darkroom Cookbook Forum

Using Ilford DD-X and D76 two separate clarification questions regarding the recommendations found in the Film Developing Cookbook.

Recommendation for DD-X used 1:4:
"Use a minimum of 250mL per 80 sq. in. of film"
Option A: 250mL of concentrate and 2000mL of water for a total of 2250mL of solution. (this makes no sense, so I assume it is B)
Option B: 50mL of concentrate and 200mL of water for a total of 250mL of solution.

Recommendation for D76 1:1:
"Use a minimum of 500mL per 80 sq. in. of film"
Option A: 500mL of concentrate and 500mL of water for a total of 1000mL of solution. (this makes no sense, so I assume it is B)
Option B: 250mL of concentrate and 250mL of water for a total of 500mL of solution.

Answer is B in both cases - correct?

Thanks in advance
Todd

Ever since I took Steve's advice in the Cookbook and started to make sure I had 250ml of stock developer my negs have improved remarkably. I use D76 1:1 (stock if developing for salt printing negs) It is now one of my golden rules.

Correction to my original post about the DDX

Recommendation for DD-X used 1:4:
"Use a minimum of 250mL per 80 sq. in. of film"
Option A: 250mL of concentrate and 1000mL of water for a total of 1250mL of solution. (this makes no sense, so I assume it is B)
Option B: 50mL of concentrate and 200mL of water for a total of 250mL of solution.

Thanks Markbau, the advice makes sense to me,I am just not sure how to interpret the DD-X recommendation. I am somewhat confident that he means
what I have identified as Option B below, but just want to make sure.

Recommendation for DD-X used 1:4:
"Use a minimum of 250mL per 80 sq. in. of film"
Option A: 250mL of concentrate and 1000mL of water for a total of 1250mL of solution. (this makes no sense, so I assume it is B)
Option B: 50mL of concentrate and 200mL of water for a total of 250mL of solution.

Todd, it should be option B. He's recommending the total volume of the diluted developer, not the amount of stock.

I just saw this post. Tim is correct, 1:4 means 1 part developer to 4 parts water to make the desired amount of stock developer, as in option B. If you see it written otherwise in the FDCB let me know.