I am trying to work out some times for developing negatives for palladium and cyanotype printing. I just measured a negative that I processed for 14 minutes in D-76. It's Tri-X, shot at 250. The density range was 1.55, about what I wanted, but the overall density seems high: the useful shadows were at about .85, and the highlights were at 2.4 (zone VII or VIII). Did I overdevelop? --shannon