DD-X: what is the minimum amount per film?

[borret]

The fact sheet for DD-X gives the following information: "Used at 1+4 for one shot processing DD-X will develop 16 135/36 films." Does this mean that a minimum of 62.5 ml of DD-X is required to develop one roll of film, regardless of the dilution used? (1000 ml divided by 16 rolls yields 62.5 ml)

 

[tedwhite]

If it's one shot processing that means that you throw it away after using it. If you are using a 16 oz nikkor light-tight developing tank that holds two rolls of film then obviously you are only using 4 ounces of DD-X (which, by the way, I've never heard of) and 12 oz. of water. My math on the mixture could be wrong. 1-4 is what you want to pat attention to.

 

[borret]

I used to believe that D-76 at 1:1 meant that you could develop two rolls of 35 mm film in a 16-oz tank using 8 oz of stock solution diluted in 8 oz of water. This is not the case, according to the fact sheet for D-76: "You can develop one 135-3 roll (80 square inches) in 473 mL (16 ounces) or two rolls together in 946 mL (one quart) of diluted developer."

A minimum of 8 oz of D-76 is required to develop a roll of film, whether you use D-76 straight or diluted 1:1.

Could this also be the case with DD-X, since the fact sheet clearly states that a litre will develop 16 rolls?