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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...

Why print? When you can get excellent prints from your black & white negatives by sending them off to commercial processing laboratories, why make your own? For many photographers, making a photographic print is as much a part of the process as shooting the image itself. For a start, it is a creative process that is both enjoyable and fulfilling and, much like the role of a post processing tools such as Photoshop or Lightroom in any digital workflow, (although much more fun) a darkroom provides film...

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...

Having shot a roll of black and white film it now needs to be processed to create the negatives. At this point your film is still light sensitive so should not be exposed to light. Processing your own film can be highly satisfying and cost effective. It is also easy to learn. The most common method for hand processing film is undertaken by using a Daylight Processing Tank. This piece of kit needs the film to be loaded on to a ‘spiral’ or ‘reel’, in the dark, and then enclosed in a light tight co...

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...

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...

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...