Kodak Advantix 400 (APS)

Advantix 400 was the fast option in the Kodak APS lineup, and the one that has aged best in terms of how it actually shoots. APS launched in 1996 with three Kodak speeds (100, 200, 400), and the 400 was pitched at low-light family use and indoor flash work where the smaller negative struggled most with grain. Kodak responded with the T-Grain architecture used in Royal Gold 400 of the same era, which kept the per-frame grain noticeably finer than you would expect from a frame around 60 percent of 35mm in area.

The practical difference between Advantix 400 and 200 is exactly what the speed numbers suggest. The 400 gives you a useful stop in dim rooms, evening light, or behind a slower zoom lens, which is where most APS point-and-shoots lived in terms of aperture. Compared with Fuji Nexia 400, the closest peer, Advantix 400 has slightly heavier reds and slightly less aggressive greens. Color rendition is closer to Kodak Gold 400 than to Portra, which makes sense because Portra was a pro emulsion and APS never received that treatment.

A quirk worth knowing: there was also a Kodak Advantix Black & White+ in 400 speed, a chromogenic monochrome processed in C-41. That is a different product. The color Advantix 400 is what most surviving cartridges contain.

Most photo labs will not touch APS anymore, but a handful of specialty operations in the US, UK, and Germany still run dedicated lines. Pulling the film out of the cartridge for flatbed scanning is technically possible and is a guaranteed way to lose alignment with the magnetic data track that tells the lab how each frame was meant to print. Kodak discontinued Advantix entirely in 2011. The 40-exposure cartridges are the most common find on the secondhand market.

Reciprocity exponent is 1.2. Zone Light Meter applies the correction past one second. A metered 4-second exposure becomes about 6 seconds at the negative; not dramatic, but enough to matter for the indoor flash-off shots APS cameras were marketed for.