There is one mistake in this article, which is all too common with younger photography hobbyists, especially from the US. It is using CineStill home kits as some kind of reference for C-41. In reality, this is a cheap-o copy of Tetenal´s press kit from the 1980´s, It is not operating at the standard temperature, nor is the time standard. No photofinishers are developing C-41 at 39°C (102°F) or for 3:30 minutes, as the standard is 37.8°C (100°F) for 3:15.
Samu Skogström Dec 22, ‘24