Collodion is a camera, not a filter. It reproduces how an 1851 wet-plate emulsion saw light: blue-sensitive, blind to red. Lips go dark, skin goes porcelain, skies burn white. The look is live in the viewfinder; tap the shutter and watch the plate develop. Three plates (Tintype, Silver, Ambrotype), grain and softness dials, import any photo. Core Image on-device. $2.99 once, no subscription, no account, no tracking.
