Calotype2011-test 2 snow scene, febr
Calotype whole plate negative Clearprint 1000H paper. Exposed 6 min on a bright day, midday at f/9.
Paper sized in 0.5% potato starch for 5 min in a warm bath, air dried.
Iodised (Greens iodiser no1, Iodide only) with 0.5% potato starch for 5 min. Air dried
Sensitised for 3 min by floating on a slab of glass on replenished solution (Green sensitizer no3 ) with reduced acitic acid for shorter exposure times. Exposed immediately in room temp through a window.
Developed in 0.8% gallic acid by floating, added a few drops Silver Nitrate 8% after 5 min developement, total 13 min floating
Washed 2 x 5 min
Hypo 2 x 10 min
Washing ca 1 hour
This test should provide higher contrast compared to test 1. The loss of speed may be due to separate sizing procedure, change in iodising solution, or less sensitizer absorbed (least probable). Shadows seem to be clear except for stains on the right side.
Calotype2011-test 2 snow scene, febr
Calotype whole plate negative Clearprint 1000H paper. Exposed 6 min on a bright day, midday at f/9.
Paper sized in 0.5% potato starch for 5 min in a warm bath, air dried.
Iodised (Greens iodiser no1, Iodide only) with 0.5% potato starch for 5 min. Air dried
Sensitised for 3 min by floating on a slab of glass on replenished solution (Green sensitizer no3 ) with reduced acitic acid for shorter exposure times. Exposed immediately in room temp through a window.
Developed in 0.8% gallic acid by floating, added a few drops Silver Nitrate 8% after 5 min developement, total 13 min floating
Washed 2 x 5 min
Hypo 2 x 10 min
Washing ca 1 hour
This test should provide higher contrast compared to test 1. The loss of speed may be due to separate sizing procedure, change in iodising solution, or less sensitizer absorbed (least probable). Shadows seem to be clear except for stains on the right side.