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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...

Although many film cameras have inbuilt light metering systems, a light meter instrument can also be used. Light Meters can measure the amount of light falling on a subject (incident light), or being reflected by a subject (reflective light). By converting these measurements, it defines what would be the most beneficial shutter speed and f/stop to use for that given subject. Light Meters are particularly helpful where subject matter / lighting conditions are difficult. Some light meters are also able to...

Contact sheets are a great way to review and record your images. They allow you to view all the negatives on a roll of film before deciding which ones you want to print and how you may want to crop them. They also provide a permanent record of those negatives for filing purposes. How to make a contact sheet To make a contact sheet we recommend using ILFORD MULTIGRADE RC DELUXE Set the enlarger head to a height that gives a 40cm (16in) wide rectangle of light on the baseboard Put a MULTIGRADE fil...

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...

Silver halide has been used in photographic film and paper for over 150 years and remains a vital ingredient found in all high-quality products. Silver halide crystals in gelatin form part of an emulsion which is used to coat the paper or film. On exposure to light (i.e. in a camera or darkroom), the crystals react turning into silver and forming the image. Silver halide prints There are many ways to produce black & white prints with options varying in quality. Traditional black & white silver ha...

Filters have long been a popular accessory for photographers and offer a number of different functions or effects. In both analogue and digital photography it is possible to recreate some of these in the darkroom or digital darkroom. However there has always been a benefit to getting it right in camera. In black & white photography, colour filters in particular are useful as they can control how the colours in a scene are reproduced as greys. Normal black & white films are sensitive to all wavele...

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...

Safety data sheets for ILFORD photochemicals when made up for use These safety data sheets relate to the products after they have been prepared for use in accordance with our recommendations. Because we do not supply these chemical solutions ready for use, we are not obliged to provide these SDSs. However, we do so in order to help users, especially those in schools and colleges, to use the products safely and assess correctly the risks involved. These are European SDSs and are provided in English only.The...

Photographic prints are intended to be viewed and when looked after can remain in excellent condition for over a century. However, as they are paper-based they are prone to damage if mishandled. Caring for a print A print intended to have a long life should be processed by methods recommended for long-term stability. If necessary it can be retouched to eliminate blemishes. Prints that are going to be displayed should be mounted, framed and glazed to complement the image and protect it from deteriorat...

Retouching is normally done to remove blemishes from the negative or the final print. It can also be used to change the tone or remove unwanted detail.  As retouching can be difficult, care is required. Advice for retouching The most risky retouching techniques involve removing parts of the image, by bleaching, cutting, or scraping with the edge of a sharp knife. The addition of density is generally less risky, and can be done using dye, paint etc, or a suitable soft pencil. When retouching prints from o...