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VET 246 Week 3
Processing The Image
Question | Answer |
---|---|
__ of all artifacts occur during processing. | 95% |
Amber safelights will fog ___ film | green |
Legal identifiers for film | Patient name Owner name Date Vet Facility Name |
First step in processing | immersed in developer |
Second step in processing | Immersed in fixer |
Final step in processing | Washing/rinsing |
Film must be completely ___ before viewing | dried |
Developer fog | Developer becomes too warm and exposes the undeveloped silver halide |
Optimized temperature for developer is ____ F | 68 |
Fixer | Removes the unexposed silver halide from the emulsion and film base and ensures that the manifest image remains intact and permanent |
Washing | necessary to preserve the quality for a long time |
If not washed properly, the film will eventually change ___ and ___ or will fade. | colors, stain |
Fixer contains a high concentration of ___ | silver |
Low amounts of film fog | Obscures the resolution of the image |
High amounts of film fog | Obscures the resolution of the entire image |
Very high amounts of film fog. | Reversal of the image |
Fixer retention | Caused by improperly fixed and/or washed film |
Drying artifacts can only be seen with ________ light | reflected |
Processor scratches | AKA Pi lines Caused by loose or worn gears Vertical lines are caused by guide shoes |
Scattered and secondary radiation artifacts | fog the film |
Extra focal radiation artifacts | appears as fog but in a uniform pattern |
Grid artifacts | Appear as unusual "lines" |
Static | Artifact caused by low humidity in darkroom |
Screen deterioration | Raised "pinpoints" of emulsion desensitize the film and destroy the latent image |