Yr 11 Photography Topics – Part 1 • Equipment and chemicals • Safety • Techniques – Processing film – Creating proof sheet equipment • Exposed film • Film reel • Developing (or Processing) Tank • Scissors • Can opener (to open end of film canister) Film Loading Process • In complete darkness (either darkroom or black changing bag) • Open exposed film canister – remove one end (use can opener if necessary) • Trim end of film for loading • Load film onto reel – try to touch only film edges • Slide loaded reel onto inner tube • Slide a second reel (empty or loaded) to hold in place • Place reels and funnel in developer tank – now light safe • Add lid Loading film reel Open film canister Loading developing tank Developing materials • Chemicals – – – – • • • • Developer (nickname: soup) Stop bath (e.g. acetic acid and water 1:30 ratio) Fixing agent Hypo clearing agent (also called Hypo eliminator) Measuring cup Thermometer Place to hang film Film clips Preparing chemicals • Chemicals – Developer – 600 mls total • 25mls Rodinal • 575 mls water @ 20 degrees – Stop bath • 600 mls water @ 20 degrees – Fixing agent – 600 mls total • 60 mls Fixer • 540 mls water @ 20 degrees – Hypo clearing agent (also called Hypo eliminator) Developing procedure • Pour developer into tank – temperature control is important (between20 – 21 degrees) • Agitate using timer and then pour developer out • Pour stop bath into tank – chemical or water • Pour a fixing agent into empty tank – at this point safe to take lid off your tank – leave film for recommended time • Rinse film with hypo clearing agent or water • Hang the film (don’t touch negative surface) • Leave for 2 hours to dry • Clean tank Safety precautions • • • • • • • • Safety goggles Chemicals are as safe as household cleaning agents Avoid contact with skin – rubber gloves, apron Wash hands after using chemicals Use tongs to transfer photos between trays Use safe lights – red Light indicator outside darkroom Don’t eat or drink in darkroom Some Resources • http://www.youtube.com/watch?v=Vu0Ul_wsYO8 • http://www.youtube.com/watch?v=qAoQt5wLGjs&feature=related • http://www.wikihow.com/Develop-Black-and-White-Film
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