The easiest thing to do is to solarize the sun. The last time the sun was out, I tried, but I didn't give it enough overexposure. (Seattle area got 13 hours of actual sunshine this month). The negative did show that I was going in the right direction, though.(posted 9282 days ago)I bought some Kodak Verichrome, as it's an old emulsion, and I figure that it will have one of the best shots at succesful real solarization of something. Have to wait for that sun, though.