Bichrosilver-1- replaced file

Direct positive on paper, finished image

PHotocraft paper, unbuffered, no OBA, starch sized 90 gsm. 9,5 x 14,5 cm

The issues to consider now are related to the curing of the dichromate and adjustment of the sensitizing solution.

 

The good quality of the paper here is the hard sized surface which allowed for plenty of detail to be retained.

Sensitized with cold dichromate formula G 307 1 hr before exposure

Exposed 1 hr late afternoon, sunny 3-4pm f/4.5 Tessar

not aged by heat

Washed room temp ab 10 min deionised water, (hot air?) dried and pressed overnight

swabbed 1.7% am. chloride

dried with hot air blower

swabbed 12% AgNO3 and 6% ac.acid (contamination picked up here see streaks accross)

dried 45 min

exposed under a lamp, rather slow developement ab 10 min

washed

hypo 2 x 4 min

short washed

HCA 5 min

washed final

 

Done