Developing Large Format Film - WordPress

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Developing Large Format FilmDeveloping large format film follows the same basic procedures and stepsas processing roll film, except the way the film is handled. There are threebasic ways of developing and processing large format film, including theuse of trays, film-processing tanks with film hangers and the use of arotary machine processor. With both the tray and tank techniques, the filmis transferred from one chemical to each successive chemical inprocessing procedure, whereas, the machine processor functions similarto a roll film developing tank with each successive chemical poured in/outof the tank.Equipment Necessaryto Develop Large Format FilmProcessing Trays and Film BasketRotary machine processorLarge format Processing Tanks andFilm Hangers

Polyester or Polypropylene NegativeEnclosures and Archival EnvelopesSafety ConsiderationsArchival Flip-top Storage BoxPhotographic chemicals should be handled with reasonable care.goal is to avoid getting chemicals onto and/or into your body.TheIf at any point, you get chemicals on you, into your body or there is achemical spill, it is important to take of the incident immediately,including washing the chemical off, and letting the instructor and/orlab instructor know to assist immediately for the safety of yourselfand others in the lab.Avoid Skin ContactAvoid Getting ChemicalsInto EyesAvoid Getting ChemicalsInto MouthIf you do get chemicals on your skin, wash immediately. Replace skin oilswith a good hand lotion.If you do get chemicals in your eye, wash immediately with cool runningwater from the nearest source, faucet or eyewash station for 15 minutes.Get immediate medical attention after washing eye.Per the Photography Department Lab rules; there are no food or drinksallowed in the film processing rooms and darkrooms. Wash hands afterworking with chemicals in both the film processing rooms and darkrooms,especially before eating.Avoid Inhaling ChemicalsThe Photography Department Lab has ventilation in both the filmprocessing rooms and darkrooms to insure fresh airflow. Particle masksare available for you to use.Clean Up Chemical SpillsIf a spill occurs it is important to contain the spill and notify the instructorand/or lab technician immediately to determine how the spill should becleaned up. Clean your clothing and shoes if they come into contact withthe chemical.Dispose of Chemicals ProperlyWith the exception of the fixer, it is environmentally safe to dispose the filmdeveloping chemistry down the sink.Per federal, state and localenvironmental regulations, you are required to dispose of the fixer in theprovided recycling container.

Tray ProcessingPreparing to WorkSecure film developing room and set-up four (4) 8” x 10” trays.The developer tray should be set-up in an 11” x 14” tray.Use stainless steel baskets to process 4 sheets simultaneously.The trays should be set-up in the following sequence:Pre-WashChemistry PreparationDeveloperWater RinseFixerPre-Wash34 oz. – tap water to be filled in film processing room.Film Developer34 oz. – use straight developer with no dilution.Water Rinse34 oz. – tap water to be filled in film processing room.Fixer34 oz.

Agitation ProcessGently agitate the ends and sides of the tray. One method is to lift eachcorner of the tray in 5-second intervals. When agitating the developer tray,lift the corners of the 11” x 14” tray to avoid over-developed film edges.Repeat the process for the specified amount for each step.When moving the stainless steel basket from each tray, grab the centerand drain for 10 seconds by the basket over the exiting tray at a slightupright angle so fluids drain from one corner back into the tray. Proceedto place basket in next tray.Development GuideAll solutions at 68º F - 72º F with developer at 70º, or - ½ degreeAll processing is done in the dark*Target development times/temperatures D-76 Straight68º70º72ºTRI-X / HP-5 EI 2006.565.5HP-5 EI 3207.576.5Pre-WashTap Water1 minuteConstant agitation. Discard solution after use.DeveloperD-76 Straight6 – 7.5 minutes* Constant agitation. Discard solution after use.Water Rinse1 minuteConstant agitation. Discard solution after use.5 minutesConstant agitation.Recycle fixer into recyclingcontainer at end of hall by door - Do Not DiscardDown Drain.5 minutesUse film washer at 68º F - 72º F. Colder temperaturesinhibit washing, while warmer temperatures will softenthe film emulsion.Edwal LFN1 minutePrepare in wetting agent tray.4 drops of LFN per 34 oz. of water.Constant agitation. Discard solution after use.Drying20 minutesHang film in film dryer at the notched corner and catchdrips with Kim Wipe.Clean-UpAs film is drying, wash and dry all graduates, trays and stainless steelbasket for next person to use.Sleeve FilmOnce the film is done drying, turn dryer off, remove film, and sleeve innegative sleeve. Turn the dryer back on if there are still sheets of filmdrying.FixerNacco Nu-FixWashTap WaterWetting Agent

Tank / Film Hanger ProcessingPreparing to WorkSecure film developing room and set-up four (4) processing tanks.Use film hangers to process up to 6 sheets simultaneously.The processing tanks should be set-up in the following sequence:Pre-WashChemistry PreparationDeveloperWater RinseFixerPre-Wash50 oz. – tap water to be filled in film processing room.Film Developer50 oz. – use straight developer with no dilution.Water Rinse50 oz. – tap water to be filled in film processing room.Fixer50 oz.

Agitation ProcessSlowly lift hangers out of film processing tank, and tilt hangers 45º for afew seconds to drain before returning them slowly into the tank. Repeatthe process for a total of 15 seconds per minute for each step.Development GuideAll solutions at 68º F - 72º F with developer at 70º, or - ½ degreeAll processing is done in the dark*Target development times/temperatures TRI-X @ EI 160 HP-5 @ EI 20066º68º70º72º75º11.51110.5109Pre-WashTap Water1 minuteConstant agitation. Discard solution after use.D-76 1:1* See ChartD-76 1:1 Constant agitation. Discard solution after use.Water Rinse1 minuteConstant agitation. Discard solution after use.5 minutesConstant agitation.Recycle fixer into recyclingcontainer at end of hall by door - Do Not DiscardDown Drain.5 minutesUse film washer at 68º F - 72º F. Colder temperaturesinhibit washing, while warmer temperatures will softenthe film emulsion.1 minutePrepare in wetting agent tray.4 drops of LFN per 50 oz. of water.Constant agitation. Discard solution after use.Drying20 minutesHang film in film dryer at the notched corner and catchdrips with Kim Wipe.Clean-UpAs film is drying, wash and dry all graduates, tanks and film hangers fornext person to use.Sleeve FilmOnce the film is done drying, turn dryer off, remove film, and sleeve innegative sleeve. Turn the dryer back on if there are still sheets of filmdrying.DeveloperFixerWashTap WaterWetting Agent

Jobo Rotary Machine ProcessorPreparing to WorkSecure Jobo Machine Processor and processing drum.In the dark, load film into processing drum. The drum can process up to10 sheets simultaneously.Chemistry PreparationJobo Processor OperationPre-Wash34 oz. – tap water to be filled in film processing room.Film Developer34 oz. – use straight developer with no dilution.Water Rinse34 oz. – tap water to be filled in film processing room.Fixer34 oz.Turn processor onTurn motor onF (Jobo Processor #1)6 (Jobo Processor #2)

Development GuideAll solutions at 68º F - 72º F with developer at 70º, or - ½ degreeTarget development times/temperatures for Tri-X @ EI 160 / HP5 @ EI 200Straight68º70º72º6.565.5Pre-WashTap Water2 minutesPour pre-wash in the lift funnel quickly. Discard solutionduring last 10 seconds by lifting drum. Be sure to assistthe lift by using your right hand under the end of thedrum support.D-76 Straight6 minutesPour developer in the lift funnel quickly.Discardsolution during last 10 seconds by lifting drum. Be sureto assist the lift by using your right hand under the endof the drum support.Water Rinse1 minutePour water rinse in the lift funnel quickly. Discardsolution during last 10 seconds by lifting drum. Be sureto assist the lift by using your right hand under the endof the drum support.5 minutesPour fixer in the lift funnel quickly. Discard solutionduring last 10 seconds by lifting drum in graduate. Besure to assist the lift by using your right hand under theend of the drum support. Recycle fixer into recyclingcontainer at end of hall by door - Do Not DiscardDown Drain.5 minutesPour water rinse in the lift funnel quickly. Discardsolution every minute by lifting drum and refilling drum.Repeat process for total time. Be sure to assist the liftby using your right hand under the end of the drumsupport to drain.DeveloperFixerNacco Nu-FixWashTap WaterTurn off Jobo Machine Processor and remove drum. Remove top ofdrum with the pump. Remove film to a tray to carry to wetting agent.Wetting AgentEdwal LFN1 minutePrepare in wetting agent tray.4 drops of LFN per 34 oz. of water.Constant agitation. Discard solution after use.Drying20 minutesHang film in film dryer at the notched corner and catchdrips with Kim Wipe.Clean-UpAs film is drying, wash and dry all graduates and drum for next person touse.Sleeve FilmOnce the film is done drying, turn dryer off, remove film, and sleeve innegative sleeve. Turn the dryer back on if there are still sheets of filmdrying.

Drying 20 minutes Hang film in film dryer at the notched corner and catch drips with Kim Wipe. Clean-Up As film is drying, wash and dry all graduates and drum for next person to use. Sleeve Film Once the film is done drying, turn dryer off, remove film, and sleeve in negative sleeve. Turn the dryer back on if there are still sheets of film drying.

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