As announced in the March/April issue of View Camera Magazine, Ilford has discontinued production of Delta 400 in sheet film formant. Too bad; I was looking forward to testing the new formulation. D4 never achieved a true EI greater than 250 and I was hoping the new emulsion would get to its published EI. At least HP-5+ is still available and Ilford has no plans to end prodution.(posted 8485 days ago)