A Simple Phenidone/Vitamin C Concentrate Developer: PC-512 Borax Smooth tonality, reasonable grain, 4 ingredients

A Phenidone/Hydroquinone Two Bath Developer: 2B-1 A first pass at designing a good two bath developer

A Better Black and White Reversal Bleach with Hydrogen Peroxide DIY slides from most B&W films with a good performing peroxide bleach

Black and White Reversal with Hydrogen Peroxide and Vinegar DIY slides from any B&W film with paper developer and an eco-friendly bleach