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At the same time, the developer – which is locally oxidised by this reaction – combines with couplers incorporated in the emulsion and produces colour dyes. Process 1 – Developer – The developer produces a silver image in the film emulsion layers from the latent image produced when the film is exposed. The steps the film will undergo as it travels through the machine are described below:
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The film will undergo a transformation from undeveloped to developed through a series of processing tanks (baths) found inside the machine (the inside of the processing machine is shown below). The process is called a C-41 process. The results from the densitometer are then used to calibrate the the machines ensuring that colour levels and chemistry are correct.īy now the film has well and truly entered the processing machine. Once the control strip has been developed it is measured by a densitometer. I should have mentioned this at the start….It is imperative a well maintained photo lab will run control strips at the start of every day or second day if they are a busy lab. So if a power black were to go out all the technician would have to do is slowly wind the crank for the film to continue on its journey through the processor.
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During a power black out the machine shuts down and the undeveloped film gets stuck in one of the tanks/baths. Fortunately this Fujifilm machine has a manual crank winder on the side.
One of the scariest things that could happen at this point for any film lab is a power blackout. Once the leader card is level with the horizontal silver metal plate the door can be shut and locked which will then make the machine light tight. You can see here Derek has his hands under the film to stop them falling down and exposing the film to light.Īt this point the door of the machine is open. The leader card is inserted centrally and the machine automatically moves the leader card forward. The numbers can then be matched once the film has exited the processing machine.
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To stop this from happening a unique serial number called a twin check is stuck to the customers order and the corresponding film. It’s very important customer’s films aren’t mixed with another customers. The holes catch onto sprockets which guide the leader card and film through the processing machine. The leader card features small rectangle holes located down it’s centre. It is important to apply tape to the both sides of the film and leader card to ensure no film falls off in the developing process. Two films can be stuck to the outer sides of the leader card. As you can see in the below picture the leader card is made from a flexible transparent plastic. Once cut the film is stuck to a leader card using special tape which won’t peel off during the developing process. Once the end has been removed the film canister is placed in a special holder which allows the end of the film to be cut square. However as you can see below Derek had no trouble using the film picker. If the technician can’t get the end of the film out by using the film picker or special lab tape then the film is put in the dark box and the canister is opened by force to be rolled manually into a temporary 35mm canister.
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This can sometimes be one of the hardest steps as some old cameras tend to bend the end of the film back on itself when rewinding.Īt this point the film is still remains light sensitive so it’s not like the canister can be opened in daylight to overcome this bent film problem. The portable dark box was created for this very problem. The first step the lab technician will do is retrieve the end of the film out of the exposed canister using a film picker. Enter the lab technician, in this case Derek from Fremantle Camera House. The next part of this story is what happens when you leave. Your little favourite film’s journey is just about to begin. So now your film has arrived, you can continue on your journey while the staff at the film lab go ahead and turn your art into memories. At this point you should be smiling as you have captured images on the original camera sensor – film! ….and nothing beats the original right? With a smile head into your local film lab to get your marvellous shots processed. Once you have finished your shoot the satisfying sound of the rewinding film should be music to your ears. Load your favourite film and continue by spending the morning or afternoon out photographing your favourite subject. The one that says Lomo on the side or Leica on the top? Either way its still around and you might as well put it to some use. You know that camera you found at an op shop or garage sale. To start get your favourite old camera out. So what’s first? Let me take you through the process… Have you ever wondered how your film is developed?