 |
A
light film can be the result of many things, the most common
being: |
|
1. |
Weak processing chemicals |
|
2. |
Cold processing temperatures |
|
3. |
Processing time too short |
|
4. |
Incorrect type of film being used with intensifying screen
|
|
5. |
Worn-out or old intensifying screens |
|
|
 |
A
dark film can be the result of many things, the most common
being: |
|
1. |
Light exposure from leaks in darkroom or daylight loader
|
|
2. |
Incorrect safelight bulb wattage |
|
3. |
Light exposure from safelight being closer than 4' from
film handling surface |
|
4. |
Light exposure from safelight with old faded filter
|
|
5. |
Light exposure in darkroom from equipment with operational
lights |
|
6. |
Incorrect processing chemical temperatures |
|
7. |
Processing time too long |
|
8. |
Incorrect film/screen combination |
|
|
 |
Most light areas or artifacts on films are a result of
radiation being blocked from the screens or light being
blocked from the film: |
|
1. |
Eyeglasses, necklaces, earrings, etc. |
|
2. |
Lead aprons |
|
3. |
Developer stains or marks on intensifying screens
|
|
4. |
Cracks in intensifying screens |
|
5. |
Film being bent or crimped prior to exposure |
|
|
 |
Most dark areas or artifacts on films are a result of some
type of light exposure to the film:
|
|
1. |
Static on film appearing as branch-like artifacts
|
|
2. |
Static on screens appearing as blotches |
|
3. |
Light leak from a ripped or torn cassette |
|
4. |
Light exposure from a faulty seal on a daylight loader
|
|
5. |
Film spilled out of box and exposed to varying degrees |
|
6. |
Dried chemicals on film hanger that dissolve during
developing and run down film surface |
|
