In August 2014 Kodak Alaris confirmed that BW400CN, the company's flagship chromogenic black and white film, was to be discontinued.
"Due to a steady decline in sales and customer usage," Kodak Alaris will no longer be producing the film, though they expect stocks will still be available up to February 2015. They were sympathetic with their consumer base, stating: "We empathize with the Pro photographers and consumers who use and love this film, but given the significant minimum order quantity necessary to coat more product combined with the very small customer demand, it is a decision we have to make."
For some time I've been experimenting with Kodak's Panatomic-X, a film which has long since ended production yet leaves a legendary status as one of the finest black and white films ever produced.
Instructing film photography, developing and printing in the darkroom. © Samuel Payne 2016