Advanced Photography Course

Establish correct replenishment rates.

Eliminate processing variables.

FILM PROCESS RECORDS

One of the first steps in process monitoring is to

keep accurate records. The process record should

include every factor that may affect the process,
including developer temperature, amount of film
processed, amount of replenisher added, the person
who processed the film or control strip, and the time
of processing. By using a processing record form,
you can establish and maintain proper replenishment
rates and monitor the processing variables that affect
processing quality. When control strips indicate that
the process is, or is going, out of control, some
potential causes can be eliminated by checking the
processing record. This often makes it possible for
you to determine the source of the problem. Also,
when workers maintain processing records, they have
an added incentive to follow prescribed processing
procedures more carefully.

In any quality assurance program, it is always

easier to prevent problems than to correct them after
they occur. When you take the following steps,
problems in processing can be reduced or eliminated:

Store chemicals as recommended by the

manufacturer.

When a control strip or sensi-strip is processed

and evaluated at the end of the workday, or shift, you
can take immediate steps to correct any problems to
avoid delays at the beginning of the next work period.

Observe effective working and shelf lives of

chemicals. Remember, most chemicals
change in photographic qualities due to age,
both on the shelf before mixing and as
working solutions.

COLOR PROCESS MONITORING

Make sure mixing, storage, and processing
equipment is constructed of materials that are
not affected by photographic chemicals or
solutions.

Much of the material discussed previously about

quality assurance is carried over to understand color
quality assurance. However, color processing quality
assurance is more critical than QA used for
conventional black-and-white film, particularly
because color balance must be considered.

Use the purest water possible to prepare
solutions and to wash materials.

Filter water when necessary.

Label all solution storage and processing

tanks.

As with black-and-white QA, color QA procedures

begin with a series of controlled exposures, but on
color film. These exposures are measured with a
color densitometer and then the red, green, and blue
densities are recorded on a graph. Control strips for
color processing are produced by the manufacturer.

The materials used in color process monitoring are

as follows:

Avoid solution contamination.

Monitoring manuals

Check the volumes of replenisher tanks and

processing tanks.

Check the accuracy of measuring instruments.

Follow prescribed chemical-mixing
procedures.

Protect solutions with floating lids and/or dust

covers.

Use only proper film and processing

techniques.

Use recommended replenishment rates.

Use recommended processing times.

Use recommended processing temperatures.

Use correct agitation.

Use proper washing procedures.

Dry film correctly.

2-30

contents

Advanced Photography Course

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DOFMaster for Windows On-line Depth of Field Calculator DOFMaster for Mobile Devices On-line Depth of Field Table Hyperfocal Distance Chart Articles FAQ Recommended Books Support Contact Links Home As an Amazon Associate I earn from qualifying purchases.	contents <- previous page next page -> Establish correct replenishment rates. Eliminate processing variables. FILM PROCESS RECORDS One of the first steps in process monitoring is to keep accurate records. The process record should include every factor that may affect the process, including developer temperature, amount of film processed, amount of replenisher added, the person who processed the film or control strip, and the time of processing. By using a processing record form, you can establish and maintain proper replenishment rates and monitor the processing variables that affect processing quality. When control strips indicate that the process is, or is going, out of control, some potential causes can be eliminated by checking the processing record. This often makes it possible for you to determine the source of the problem. Also, when workers maintain processing records, they have an added incentive to follow prescribed processing procedures more carefully. In any quality assurance program, it is always easier to prevent problems than to correct them after they occur. When you take the following steps, problems in processing can be reduced or eliminated: Store chemicals as recommended by the manufacturer. When a control strip or sensi-strip is processed and evaluated at the end of the workday, or shift, you can take immediate steps to correct any problems to avoid delays at the beginning of the next work period. Observe effective working and shelf lives of chemicals. Remember, most chemicals change in photographic qualities due to age, both on the shelf before mixing and as working solutions. COLOR PROCESS MONITORING Make sure mixing, storage, and processing equipment is constructed of materials that are not affected by photographic chemicals or solutions. Much of the material discussed previously about quality assurance is carried over to understand color quality assurance. However, color processing quality assurance is more critical than QA used for conventional black-and-white film, particularly because color balance must be considered. Use the purest water possible to prepare solutions and to wash materials. Filter water when necessary. Label all solution storage and processing tanks. As with black-and-white QA, color QA procedures begin with a series of controlled exposures, but on color film. These exposures are measured with a color densitometer and then the red, green, and blue densities are recorded on a graph. Control strips for color processing are produced by the manufacturer. The materials used in color process monitoring are as follows: Avoid solution contamination. Monitoring manuals Check the volumes of replenisher tanks and processing tanks. Check the accuracy of measuring instruments. Follow prescribed chemical-mixing procedures. Protect solutions with floating lids and/or dust covers. Use only proper film and processing techniques. Use recommended replenishment rates. Use recommended processing times. Use recommended processing temperatures. Use correct agitation. Use proper washing procedures. Dry film correctly. 2-30 contents Advanced Photography Course <- previous page next page ->	As an Amazon Associate I earn from qualifying purchases.
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