CineStill Film

SP-645 Max 4x5 Film Processing Tank 3 Holders

SP-645 Max 4x5 Film Processing Tank 3 Holders - Main image
SP-645 Max 4x5 Film Processing Tank 3 HoldersSP-645 Max 4x5 Film Processing Tank 3 Holders
$63.5 $127 In stock

Category: Process

The Stearman Press SP-645 Max 4x5 Film Processing Tank is the much-anticipated sequel to the hugely popular SP-445. An upgrade from the 4-sheet SP-445, the SP-645 can process up to six sheets of 4x5 film with just 20 oz. (575ml) of solution. 

These tanks are the easiest to load in their product category, using holders that mimic the process of loading your camera's double darkslide film holders. When doing all of this in the dark, easier is better! The film holders are lined up and inserted into the tank, the lid securely fastened, and you are ready to develop your film in daylight. 

Download SP-645 User Guide 

Note on SP-645 Tank Lid

Customer Reviews (5.0 / 5 · 5 reviews)

Nicholas W. ★★★★★

Processing six sheets at once has cut my darkroom time in half, and the three holders load evenly without any binding. The tank itself feels sturdier than my old setup, and chemistry pours out fast with zero leaks. Just what I needed for batch developing.

Mia ★★★★★

The loader slides in way smoother than I expected, and having room for six sheets means I can batch a whole shoot’s worth of negatives in one go. Saves me at least a full hour of fiddling around compared to my old setup.

Steven ★★★★★

Six sheets at once is a huge upgrade from my old setup, and the tank still feels solid in my hands while agitating. I loaded the three holders in about ten minutes once I got the hang of it, and the lid seal was bone dry after the whole run.

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