480ml of collodion. All of our collodion formulas are supplied inside wide-mouth borosilicate bottles to allow an easier pour and avoid the aging of the collodion as long as possible.

The Old Workhorse formula contains 2 salts: Potassium iodide and cadmium bromide. It has a great tonal range, similar to the Quick Clear and a long shelf life, but It’s one stop slower than Lea #7.

It is cloudy when mixed and needs between a week and a month to rinse and for impurities to precipitate to the bottom of the bottle. Decanting is necessary: you may want to buy a 500ml bottle for this purpose. It can be used shady without too much trouble.

All our collodions are freshly mixed when we receive an order.