Xtol is Kodak's last developer, and many claim to be their best. Of developers commonly available, it is the most non-toxic.
- One bag of developer powder makes 5 liters
- Xtol does not contain hydroquinone. It uses ascorbic acid (vitamin C) and Phenidone as developing agents
- Xtol is a solvent developer. It produces fine grain with some loss of sharpness.
- Dilute Xtol 1:1 to gain sharpness and increased grain
- Xtol does not reduce film speed
- Kodak recommends 5-7 inversions to last 5 seconds. Repeat every 30 seconds
- Keep a 1L bottle of stock solution for development, and a 4L bottle of stock solution as replenishment.
- For every roll of film, pour 70mL from the 4L bottle into the 1L bottle.
- dispose enough of the developer you used to develop the film so that the 1L bottle is full again.
- Supposedly, you can continue to do this indefinitely.