專業 POLYMAX RT 顯影液與補充液，5L 濃縮液可調配 25L

After switching to this chemistry, my negs come out noticeably cleaner and the working solution holds up for weeks in a closed tank. The 5L concentrate making 25L is a real money-saver compared to buying ready-mix, and the lower replenishment rate means I'm not constantly topping off.

Mixed this up to 25 liters and the replenishment rate is genuinely low, so this one box lasts my darkroom a couple of months of steady printing. The tones stay consistent even after a long session, which is the main reason I’m sticking with it.

Finally a developer that's actually consistent roll after roll. Mixed up the 5L concentrate and it's been sitting in my brown jug for two months without losing any vigor. The lower replenishment rate means I'm not constantly mixing fresh chemistry, which saves me a ton of darkroom time.