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Lighting Configuration (Light (Direct (Acute angle, Reflected back into…
Lighting Configuration
Illumination
Dark field
Reflected off surface
Dark background
Surface inconsistencies are light
Bright field
Light bounces off the surface
Background is light
Indentations appear dark
Light
Direct
Acute angle
Reflected back into lens
Variations in the surface are detected
Oblique
Light reflected away from surface
Light diffuses over the surface
Copy light
Evenness of illumination
Good for prints within the exhibit surface
Obtuse
Reflect light off background away from the lens
Transmitted
Light passes through the surface
Tent
Surface evenly illuminated