Sunday, March 20, 2016
The image shown here was made using the Bostick & Sullivan cyanotype kit, a traditional cyanotype formula. I used 90 drops of finished solution (45 drops each of parts A and B mixed) to coat an 11 x 14 inch sheet of paper. The exposure was about 8 minutes in late afternoon sunlight on March 19, 2016 (partly cloudy). The digital negative (printed on PictoricoPro transparency film, using the glossy photo setting on an Epson 3880 printer) was made from a color digital image converted to B&W that I then adjusted using a cyanotype curve I found online. I next converted the B&W image to orange by using Color Balance, in Photoshop, boosting the yellow and red sliders all the way up. I then flipped the image horizontally so that the image would be right way around when placed against the cyanotype paper with the printed side closest to the paper (flipped). With the rain, I'll be able to expose no more images today, but I may go to the art supply store to seek a better paper to work on. I'm also reading up on toning cyanotype prints with tea, which darkens the highlights a little and convert the bright Prussian blue of the cyanotype to a deeper, navy blue.
It started raining again on March 20, the rain continuing into the following day. By the end of the 21st, we had 0.80 inches of new precipitation in the rain gauge, which brings the total for the 2015-2016 rain year to 29.10 inches at my location in northeast Santa Rosa. The historical average for Santa Rosa is a little over 36 inches.