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 20 degrees – Stop bath 600 mls 20 degrees – Fixing agent – 600 mls total 60 mls Fixer 540 mls 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