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5th April 2017 Buoyed by ongoing global resurgence in photographic film use, HARMAN technology Limited is delighted to be offering film photographers the opportunity to place orders for a range of specialist film products and formats for the 12th consecutive year. To enable this film photography revival, it is vital that a wide range of film formats are available including film for ultra large format and collectable cameras. By consolidating orders HARMAN technology can supply products that would not n...

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...

Photographic Paper FAQ's Which paper product is best/suitable for photograms.  All of our ILFORD photographic papers will easily produce photograms, so the choice will depend on which surface finish you prefer and whether or not you want fibre or resin coated. Resin coated paper is lower cost, easy to process and dry flat and would be a good choice for starting out. Does reciprocity affect paper? Paper products are designed for much longer exposure times than film and are less sensitive to reciprocity...

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...

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...

Testing your Safelights Safelights are an essential component in any darkroom set up. We recommend testing them annually, as ageing can change the transmission characteristics of the filters. This can cause visible fogging of the print or, more likely, a subtle but noticeable drop in contrast. When setting up your safelights always read the instructions and don't exceed the recommended bulb wattage. Fitting a brighter bulb or mounting your safelight too close to your developing dishes,  may cause degra...