This is a Compard R09 Spezial Film Black and White Film Developer from Rollei. It is a fine grain developer that produces controlled contrast and sharp negatives.
This product and Agfa Rodinal Special are not Rodinal. Rodinal Special is a smaller unit version of Agfa Studional
Diluted with water at the ratio 1 + 15 (= 1 part concentrate + 15 parts water)
10 - 12 35mm films 135-36 or roll film 120 per liter; 50 - 70 sheet films 9 x 12 cm per liter (= 0.5 - 0.75 m2)
To ensure uniform utilization of speed and gradation, the developing time should be lengthened for the second and each subsequent developing batch