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User Manual for Photographers' Formulary Prescysol EF Film Developer - Makes 50 Liters Click to enlarge the picture
Contents of the user manual for the Photographers' Formulary Prescysol EF Film Developer
- Product category: Black & White Film & Paper Chemistry Photographers' Formulary
- Brand: Photographers' Formulary
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Photographers' Formulary Black & White Film & Paper Chemistry
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User manual for the Photographers' Formulary Prescysol EF Film Developer contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Photographers' Formulary product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Photographers' Formulary user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Photographers' Formulary product will considerably shorten its lifespan!
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Product description Photographer's Formulary Prescysol EF is a specially formulated developer unsurpassed in its ability to provide superb negatives with extremely fine grain, the highest available sharpness, smoothly gradated tones and delicate and translucent highlights. - Tanning Developer
- A tanning and staining developer; As the developer is absorbed, the emulsion is tanned, or hardened, and this hardening is variable, being greater in areas of greater exposure
- As the emulsion tans, it inhibits the absorption of further amounts of the developing agent, and so development in these highlights areas is restrained; The lower tanning action in the shadow areas allows development to continue and these areas continue to build, producing negatives with rich, deep shadows, beautifully gradated mid-tones, and delicate highlights
- Negatives developed in Prescysol EF, particularly using the partial stand method, will yield full speed, exhibit high acutance, and will need considerably less burning-in to areas such as skies
- As development proceeds, oxidation and natural by-products of the process stain the emulsion brown, the staining being proportional to the exposure level of the various parts of the negative; The result is a continuously variable mask of printing density across the tonal range of the negative
- As the emulsion is stained mostly between the silver grains the effect is to soften the grain and so produce a smoother tonality in large areas such as sky and mist, where grain can normally be such a problem
- Prescysol EF is an extremely tolerant developer; films of different make and speed can be developed together at the same time. For example, HP5 400 (120 roll film) and Delta 100 (35mm) despite being of totally different grain structure can be developed together in the same tank for the same time
- In fact, the modern tabular grain films (which require closer control of times and temperatures in normal developers and are more susceptible to burned highlights and blocked shadows) will benefit enormously from being developed in Prescysol EF, yielding the fine grain, tone and acutance of which these films are capable
In the Box Photographers' Formulary Prescysol EF Film Developer - Makes 50 Liters (13.2 gal) 2 lb Table of Contents
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Technical parametersPhotographers' Formulary 01-5016 Specs | Chemistry Type | Film Developer | | Powder/Liquid | Liquid |
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