I'm already signed up for the workshop. The confermation came in the mail last Friday. WOO WHOO, goin' to Montana soon... Anyway, this weekend I'm hoping to get out and take some 4x5 and 8x10s. But I'm not sure what density range to develope them to. I've read Phil Davis' BTZS but didn't understand contrast index. I've no problem with log densities and have access to a densitomiter with a blue channel. So what I'd like to know is what density range would fit best.