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Film and single use cameras How long after exposing can I leave my film before processing? For best results, we always advise processing soon after exposure although in practice most films can be left for several months. One exception is ILFORD PANF Plus, we would always advise processing this film as soon as possible and certainly within 3 months of the film being exposed. How do I account for film reciprocity during long exposures? This information can be found in the Film Reciprocity Failure Compensa...

Chemistry Which is best fixer - HYPAM or RAPID fixer? Both fixers perform equally well, HYPAM will accept the addition of a hardener if required, whereas RAPID fixer will not work with hardeners. What’s the shelf life of ILFOSOL 3 film developer? Unopened, ILFOSOL 3 will last about 18 months. Once open, it should be used within three months. Remember to mix ILFOSOL 3 for immediate use ONLY. What is replenishment? Some processing chemicals can be replenished, this means that instead of discarding the...

Advice for vegans  Do your ILFORD Chemicals contain Animal products? No. Do your film or paper products contain animal products? We use animal gelatine in all our film and paper products. The gelatine we use is a by-product of the farming industry and no extra animals are used to make it. Why can’t Gelatine be substituted for something else? Gelatine has unique characteristics which act as a membrane matrix for the silver crystals but also interacts with the crystals as they are formed. Substitu...

This guide focuses on the photo chemicals you can use for processing film. We also have a guide to processing film as well as some handy tips on loading a developing spiral. Choosing photo chemicals We have a range of photo chemicals designed to give different results with our films and papers. The choice of stop bath and fixer is limited but we have several film developers you can use. Film developers come in either liquid and powder concentrate form and have a range of attributes. Some developers giv...

Processing your own film can speed up your workflow and give you quicker access to your negatives. It is also typically more cost effective and best of all there is nothing like the sense of satisfaction you will gain by taking control over the full end-to-end process of your photography. While trying it for the first time might be a daunting prospect, fear not. Below is our guide on what equipment, chemistry and method would be suitable for anyone new to processing films. For more detail, you can downlo...

The first stage of making a darkroom print is to determine the exposure time. If you have already created a contact sheet of your negatives, and they appear correctly exposed, then you should have a rough idea of the necessary exposure (provided you haven’t moved the enlarger head or aperture setting after exposing the contact sheet). Note: If you change the degree of enlargement you will also need to adjust the exposure. Some enlargers have scales printed on their columns to make this easier. Another...

What are film developers? Film developers are a photographic chemical that turns your exposed film into working negatives as part of a processing workflow. (You will also need a stop bath and fixer - for more information on how to process your film or which chemistry to choose read our guides). We offer a broad range of film developers that are designed to exploit the different characteristics of our films. Developers are available in either powder and liquid concentrate form and have a range of charact...

When photographic material is exposed to light it begins to darken. The more light the material receives, the darker it becomes. This opens up a range of possibilities for making fun, creative and artistic images without a camera. Making a picture without a camera couldn’t be easier and is a fun activity to try with children. However, for many, exploring and experimenting with different effects of light on photographic /blog/the-luminogram-process/materials can become an art form by itself. Where to sta...

General health and safety advice This section provides advice to our customers on the safe handling, use and storage of our photochemical solutions, best practice for waste disposal and specific advice to women who are pregnant or breastfeeding a child. If you are looking for information on the chemical safety of HARMAN photochemistry solutions, please refer to the Safety Data Sheets (known as SDS or MSDS) 24 HOUR OHES emergency line for advice on chemical incidents Safe working practices It is essen...

Choosing Photo Chemicals We have a range of photo chemicals for printing/processing all of our resin coated and fibre base papers in trays/dishes as well as in processing machines. If you are new to printing the choice could appear excessive yet each liquid or powder paper developer has its purpose or strengths. For an overview of the whole range and what they do we have pulled together an introductory overview. If you are a beginner* and wondering where to get started then read on. *While thi...