Tone D
Tone D—Brown (Uranium)
Positive Employed—Normal
The toning formula employed and the instructions to be followed are the same as for Tone B, the time of toning being about 3 minutes at 65 degrees to 70 degrees F.
Tone E
Tone E—Sepia (Uranium and Iron)
This particular tone is obtained by suitable mixture of red and blue toning solutions. By varying the proportions of these baths, tones varying from red to sepia may be obtained.
The following is only one of the many tones produced by this method. Increase in the proportion of the iron bath makes the tone colder, and vice versa.
Positive Employed—Medium
Immerse the well washed film in