We believe a photograph should remember how a moment felt.
Heliograph is a stills camera for iPhone that develops its own photos from the RAW sensor data. Instead of filters, it uses real color math modeled on the photochemical printing process: a negative stage, then a print stage, so tone, color, grain, and halation come out of the process rather than being pasted on top.
Every photo can be developed with any of four prints, and changed at any time, because editing is non-destructive and the original negative is always kept.