Ned's photos with the keyword: thiourea

The "plant wizard" Luther Burbank had experiment plots at this location which is now in the middle of the city of Santa Rosa. His widow sold the land to Santa Rosa Jr. College in 1930, and it was maintained as a park for about 20 years. It is now the site of the Santa Rosa Jr. College campus. The old oak tree on the left would have been here when Burbank was alive, and there are many beautiful old heritage oaks on the campus. Another "direct paper positive" made with a pinhole camera. Bleach with weak H2O2 and redeveloped in thiourea. 7x11 inches.

Behind a handcrafted yarn store... This was painted flat barn red and is not overexposed after 6 minutes! ( Normal exposure would be around 40 or 45 seconds in full sunlight like this ) I tried this a week ago with a 1 minute exposure and the result was almost blank. Direct pinhole paper positive using mostly safer chemicals, re-developed in thiocarbamide.

In Cotati, California. Here in Northern California we don't have as many palm trees as in the Southern part of the state. Another pinhole paper positive made by bleaching the negative with hydrogen peroxide and then redeveloping with thiourea.

Today at Taylor Mountain Regional Park in Sonoma County, California.. my little coffee can pinhole camera was sitting in the middle of the trail and my dog was lying there waiting patiently when another group came along with a dog so I picked it up after 4 minutes.... was planning to go a bit longer but I like how it came out anyway :) Another "direct paper positive" redeveloped in thiocarbamide. It's a bit difficult to get midtones with the thiocarbamide ( compared to re-exposing and developing w/ paper developer ) .. you can see some good midtones in the pool of sunlight just in front of the camera, but that was quite bright. I'm learning that if you want to develop these in sepia, you need to give more exposure or it ends up like a notan.

Russian River a little North of Cloverdale, near a bend in the river. Another direct paper positive. 7x11" curved plane pinhole camera made from foamcore. Redeveloped in thiocarbamide.

Another "direct positive" this time redeveloped in thiourea ( sepia toner ). Rainy afternoon, 1 hour exposure in a coffee can pinhole camera.

Another "direct positive" this time redeveloped in thiourea ( sepia toner ). Rainy afternoon, 1 hour exposure in a coffee can pinhole camera.