Processing the Image Flashcards
This should be light-tight, 6x8 ft, kept at 68*F, 40-60% humidity
Dark room
What type of bins should film be stored in? How should they be stored?
Metal, light-tight bins
Vertical
Filters out light that harms film
Usually dark red
Safelight
What is the safe wattage for a safelight?
15 or less
How far away should the safe light be from the work area?
> 4 ft
This type of safelight shines over the work area
Direct
This type of safelight shines facing the ceiling
Indirect
Used to ID film
Photo imprinter
Pencil, scratching, sharpies, and adhesive tape identifiers are all
temporary
How long does manual processing take?
1 hr
How long does automatic processing take?
90 sec per film
Alkaline environment of phenidone and hydroquinone
Converts silver halide to black on a film
Developer
If a film spends too much time in the developer
crystals that shouldn’t be converted will convert and cause film fog
Strong acidic environment of ammonium thiosulfate
Washes away unexposed silver halide crystals
Fixer
What happens if the film swims too long in the fixer?
Milky, pink radiograph
Discoloration
Preserves the film’s archival quality
Washing and Drying
Drying removes
85-95% moisture
With manual processing, how long should the film stay in the developer?
4 mins
How long should the film stay in the fixer?
8 min
How long should the film be washed?
12 mins
The ______ the chemical, the faster it develops
warmer
5 systems of the automatic processor
- Transport
- Replenishment
- Recirculation
- Thermostats
- Silver recovery
The chemicals in the automatic processor are kept at
97*F
Transport artifact where the marks are darker than surrounding emulsion
Plus density
Transport artifact where the marks are lighter than the surrounding emulsion but still maintain emulsion
Minus density
Transport artifact where the emulsion has been removed from the base either prior to processing or within the processor
Scratch marks
Transport artifact where the emulsion is picked off the film base and redeposited on another area of the film
Leaves a tiny hole in the emulsion
Pick-off
Transport artifact where the rollers are moving unevenly, and the film hesitates slightly
Hesitation marks
Transport artifact where two or more gears need to be replaced the plus or minus density marks are not deposited in a specific pattern
Chatter
Transport artifact where these plus density marks are specific to the circumference of the roller that caused the artifact
Pi lines
Transport artifact that appear as fine lines on either the leading edge or trailing edge of the film that’s caused by the snapping of the film against the film guides of one tank to another
Guide shoe marks
Chemical artifact where the film appears to have an oily pattern of color in reflected light
Caused by leaking or dripping fixer into the developer
Dichroic fog
Chemical artifact where there is a flat and poor-contrast film; often films are damp when they exit the processor
Under-replenishment
Chemical artifact where the images are dull and lack contrast
Hydroquinone is too cool to function
Temp too cool
Chemical artifact where the images are dark and dull and lack contrast
Developer will exhaust quickly and turn dark brown
Temp too warm
Chemical artifact where there is silver plating on the images
Fixer not replenishing correctly
Chemical artifact where the fixer precipitates on the rollers, causing scratches
Fixer overconcentrated
Chemical artifact where the films are milky white or pinkish and feel grainy or rough
Fixer exhausted
Chemical artifact where the films are green or pink
There is an image but it blackens quickly
Fixer tank is empty
Chemical artifact where the film has a blur pattern or minus and plus density
Incorrect mixing
Chemical artifact where the films are milky and streaky in reflected light
Washer water tank is empty
Chemical artifact where the films appear dirty and streaky, archival quality is compromised, and films turn yellow in 2-3 wks
Wash water tank not circulating
What % of artifacts are due to processing?
98%
