Richard Jepsen
Member
I stopped taking the Unidrum cap off between solutions after the 4th DR session. Dah! Significantly quicker to pour fluids out the spout and not worry about retained fluids. Getting more adept with the Unidrum. Concerning lid security, no doubt Murphey's Law will eventually strike. He will sneak up on you when your rushing or not giving your full attention. The more expensive Jobo drum is the best answer to avoid that nasty spill.
Disadvantages:
- More paper waste without seeing the print develop. Took (3) tries before I got a keeper even after mapping out exposure with test strips.
- The developer weakens with each print. 100 ml of stock LPD mixed with 250 ml of water has a capacity of (2) 11x14s before factoral development is a must. Use fresh developer after the second print for consistency.
- Two more DR items to remove and store after a DR session; tank and roller
- The process is slower but in a light tight drum.
Advantages:
- The door opens when the print goes in the tank. More frequent air exchange (unvented DR).
- Using a water rinse less carry over vs single tray processing.....the prime reason for experimenting with a tank
- Fume reduction.
- Easier to drain chems using a tank vs 12x16 tray.
- The drum is easy to clean.
- Paper with limited safelight time before fogging benefits with drum processing.
Disadvantages:
- More paper waste without seeing the print develop. Took (3) tries before I got a keeper even after mapping out exposure with test strips.
- The developer weakens with each print. 100 ml of stock LPD mixed with 250 ml of water has a capacity of (2) 11x14s before factoral development is a must. Use fresh developer after the second print for consistency.
- Two more DR items to remove and store after a DR session; tank and roller
- The process is slower but in a light tight drum.
Advantages:
- The door opens when the print goes in the tank. More frequent air exchange (unvented DR).
- Using a water rinse less carry over vs single tray processing.....the prime reason for experimenting with a tank
- Fume reduction.
- Easier to drain chems using a tank vs 12x16 tray.
- The drum is easy to clean.
- Paper with limited safelight time before fogging benefits with drum processing.
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