Cybercollege 13-26

A lens coating

• softens the image from a lens
• reduces internal reflections in a lens
• protects the lens from scratches
• All of the above are correct

In day-to-day service -- especially in hazardous locations -- this device is used to protect the lens from surface damage

• a gel
• a lens hood
• a star filter
• an ultraviolet filter

This filter softens the image and minimizes skin imperfections.

• a star filter
• a diffusion filter
• a low contrast filter
• a polarizing filter

This filter is used to cut reflections and make color look more dramatic

• a diffusion filter
• a gel
• an ultraviolet filter
• a polarizing filter

The three primary subtractive colors are

• red, white and blue
• green, red and blue
• magenta, cyan and yellow
• red, blue and yellow

In additive color red and green create

• yellow
• blue
• magenta
• cyan

In additive color red and blue create

• green
• yellow
• magenta
• red

The device that is used to measure, monitor and set video (luminance) levels is the

• VU meter
• vectorscope
• waveform monitor
• diascope

The purity of color is referred to as

• chroma
• luminance
• brightness
• saturation

The device that is used to monitor and properly set colors (generally from a test pattern or color bars) is the

• diascope
• sync generator
• time-base corrector
• vectorscope