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Mono C-41 1 liter Mixing and Processing Instructions
Mixing Directions:
While is it possible to mix this chemistry in amounts smaller than one liter kit it is not advisable due to small amount of concentrate required.
Color Developer:
The developer in the C41 Kit has several components and may appear to have separated or stratified. This is a normal occurrence for the developer. Before mixing with water make sure the concentrate is thoroughly mixed by shaking the bottle for 2 to 5 minutes. Chemical life of the developer is approximately four to six weeks in sealed bottles filled to the brim, or with the use of Protectan spray part #109556.
Mix at 20° to 45° C ( 68 to113°F) Water Concentrate Working Solution 900 ml 100 ml 1 Liter Bleach-Fix:
The bleach and fix steps have been combined into one step for this kit. It is important to thoroughly mix the chemistry. As bleach needs aeration to work properly shake the bottle for 1 minute after mixing. Bleach-fix has a shelf life of about twelve weeks after being mixed.and stored in a sealed bottles.
Mix at 20° to 45° C ( 68 to113°F) Water Concentrate Working Solution 700 ml 300 ml 1 Liter Stabilizer:
Stabilizer not only acts a a wetting agent to help prevent water sports but also helps to stabilize the dyes in the negative to prevent color shifts. Stabilizer has a a shelf life of up to six months. Reels and and tanks should never come into contact with stabilizer. Films should always be stabilized off the reels to avoid contamination.
Mix at 40° to 45° C (68° to 113 °F) Water Stabilizer Working Solution 980 ml 20 ml 1 Liter Processing Table:
The Mono C-41 one liter kit can process up to twelve medium speed (ISO 200 and below) 35 mm films. Faster films (ISO 400 and above ) only three runs should be attempted.
Solution Process
Temp CFirst Run Second Run Third Run Fourth Run Color Developer* 38° C 3 min 15 sec 3min 3 30sec 3 min 45sec 4 min Bleach-fix 35-40°C 3 min 30 sec 4 min 5 min 7 min Wash** 30-40° C 3 min 3 min 3 min 3 min 20-25° C 7 min 7 min 7 min 7 min Stabilizer 20-25° C 1 min 1 min 1 min 1 min * While color development time is critical bleach-fix and stabilizer times can be extended up to 50%.
** Wash the film in running water. If no running water is available fill the tank with tempered water and agitate continuously, changing the water every 30 seconds. For washing film in a Jobo processor fill the tank with the appropriate amount of water, allow the drum to rotate, changing the water every 30 seconds.
Processing by Hand Inversion:
- Developer and Bleachfix must be brought to the process temperature of 38° C ( 100.4° F) before starting processing. this can be done by immersing the solutions into tempered water.
- Load the film and preheat the loaded tank with the film to the process temperature by immersing the tank in water for five minutes.
- In order to keep the temperature constant during development both the tank and solutions should be kept in tempered water.
- After filling the tank with chemistry tap the tank against the table or sink to dislodge any air bubbles that may have become trapped in the tank.
- The tank should be agitated by turning it upside down and then back to it's original position every 15 seconds during the process.
Rotary Processing:
- Load the film and preheat the tanks exterior in the water bath of the processor for five minutes.
- After filling the tank with chemistry tap the tank against the table or sink to dislodge any air bubbles that may have become trapped in the tank. If you are using a JOBO processor with lift it is not necessary to tap the tank
- Rotation speed should be between 65 and 75 rpm. If you are using a JOBO processor with a 3000 series tank the speed should be set at level four.
Trouble Shooting Help:
PROBLEM POSSIBLE CAUSE CORRECTIONS Density or contrast too low Underexposed film Check Camera Low color,contrast or minimum density Under development. Time to short or Temperature to low Lengthen development
time by 15 to 30 seconds.Color density or contrast too high Film was over exposed Check Camera High color,contrast or minimum density Over development. Time to long or temperature to low. Shorten development time by 15 to 30 seconds. Brownish mask Short Bleachfix time or exhausted solution Bleachfix the film a second time and/or mix new solution. Cloudy or streaking after drying Insufficient bleach-fixing Bleachfix the film a second time, wash and stabilize again White spots on film Hard water Remix stabilizer 1 part tap water to 2 parts distilled water.
If you have any questions, contact us utilizing one of the following methods:
Equipment or Processing Questions:
- Phone: Customer Service Department (734) 205-9421
e-mail: tech@jobo-usa.comRepair Questions:
- Phone: Repair Department (734) 205-9420
- e-mail: repair@jobo-usa.com
JOBO Contacts
- Telephone (734) 677-6989
- Fax: (734) 677-6963
- Postal address
- P.O. Box 3721, Ann Arbor, MI 48106
- Shipping Address
- 4401 Varsity Drive, Suite D, Ann Arbor, MI 48108
- Electronic mail
- Sales: sales@jobo-usa.com
- Equipment & Processing Questions: tech@jobo-usa.com
Repair Information: repair@jobo-usa.com- Shipping or Billing Questions: help@jobo-usa.com
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This page last updated on 03/20/02