CVSS CVSS Camera Technology & Optics 2

Question 1

What does the 'minimum illumination' specification on a camera datasheet indicate?

Accepted Answer

The lowest light level at which the camera can produce a usable image

Answer

Minimum illumination specifies the lowest light level (in lux) at which the camera can still produce a recognizable image.

Question 2

A PTZ camera's 'preset' function is used to:

Accepted Answer

Store and recall specific pan, tilt, and zoom positions quickly

Answer

Presets save specific PTZ coordinates so the camera can instantly return to programmed positions on command or schedule.

Question 3

In a multi-megapixel camera system, what trade-off must a designer consider when increasing resolution?

Accepted Answer

Higher resolution requires more bandwidth and storage

Answer

Megapixel cameras produce larger image files, which directly increases bandwidth consumption and storage capacity requirements.

Question 4

What is 'back focal length' (BFL) adjustment critical for when installing a CS-mount lens on a C-mount camera body?

Accepted Answer

Ensuring the focal plane aligns with the sensor surface for proper focus

Answer

The 5mm difference between C-mount and CS-mount requires a C-ring adapter or BFL adjustment to bring the focal plane onto the sensor correctly.

Question 5

Which camera type uses a single sensor with a beam splitter to produce full-color video at all light levels?

Accepted Answer

3-CCD camera

Answer

A 3-CCD camera splits incoming light into red, green, and blue components directed to three separate sensors, delivering accurate color at low light.

CVSS - Certified Video Systems Specialist Practice Test