Pick 01 of 10
Versatile Tank with Dual Reels
A developing tank holds your film on spiral reels inside a light-proof cylinder, so all the chemistry happens in daylight once the lid is on. The funnel-shaped opening lets you pour solutions in and out without ever exposing the film. Look for adjustable reels that take both 35mm and 120 film, and a lid that seals well enough to survive agitation upside down.
Why we picked this exact one: The Paterson Universal Tank #115 is the default answer when film communities are asked which tank to buy, holding two 35mm rolls or one 120 roll at a time. It carries a 4.7-star average across more than a thousand ratings, and its auto-load reels are noticeably kinder to beginners than stainless steel spirals. The lid can be stiff to press on when you're racing a timer, but that same tight seal is why it doesn't leak mid-agitation.




























