We have slightly revised the piece on pyo's health hazards on our web sites

wwwiewcamera.com

www.cameraarts.com

the first paragraph was actually a question Mr. Knoppow was responding to

I am still waiting for the critics of this piece to bring new light to the topic rather than just be critical.

On another note in the current issue of CameraArts I have compared PMK and HD with 35mm FP4+ In the July issue of View Camera (out in about 10 days) I compare PMK and HD with Tri-X and FP4+ 4x5 sheet films.

steve simmons