
Developing Tank
A developing tank is a light-tight container used in photography darkrooms to hold film reels during chemical development of analog film.
Estimated value as of 2026 · Source: Average from B&H Photo and Freestyle Photo listings for common plastic 35mm deve…
Fun Fact
Paterson tanks, the most popular choice, are made from durable high-impact polystyrene and can develop multiple rolls of 35mm or 120 film simultaneously without needing a full darkroom.
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