Yodica Andromeda 800

Yodica is a Milan workshop that hand-treats off-the-shelf C-41 color negative stock by pre-exposing each roll with colored light before canning it. The company started up around 2018, and every film in the range carries an astronomical name. Andromeda is their pink-and-violet roll, designed to lay a rosy haze across the entire frame. The standard product ships rated at ISO 400. Zone Light Meter catalogs an 800 variant for photographers who push the stock; the underlying base behaves the same.

The effect comes from a pre-flash of magenta and violet light applied to the unexposed roll, which is then loaded back into a 35mm cartridge by hand. When you expose normally, the pre-flash adds to whatever the lens records, and shadows pick up the colored haze more strongly than highlights because the silver in the base stock responds to additional light faster where the lens-recorded exposure is weakest. The look is most pronounced on darker subjects and in indoor light. Shoot a beach at noon and the pink reads as a faint cast. Shoot a brick wall in shade and it looks like a Sofia Coppola screenshot.

Grain is whatever the base stock gives you, which on Yodica rolls tends to be a standard ISO 400 consumer emulsion. At a rated ISO 800 the grain coarsens and the pre-exposed cast competes harder with shadow detail. If you push it, push in development too. Do not just shoot at 800 and process normal.

Closest peer is Dubblefilm Bubblegum, which uses the KONO! Reanimator process to lay similar pink and purple casts on ISO 200 stock. Bubblegum is more even across the frame. Andromeda has more drift roll-to-roll, which is the point.

35mm only, 36 exposures, C-41 at any lab. Yodica runs in small batches and sells out for months at a time.

The reciprocity exponent is 1.20. Zone Light Meter applies the correction past one second. A metered 4-second exposure becomes roughly 6 seconds at the negative. Long exposures push the colored pre-flash toward the highlights in unpredictable ways, so for night work plan on bracketing.