EVEN MORE question for image exam

What does the debayer process accomplish?

Converts raw image data into RGB video

Why is shooting in raw advantageous for post-production?

It allows ISO adjustments without affecting actual captured light

How does ISO affect raw footage?

It only affects sensor noise and dynamic range

Which combination leads to shallow depth of field?

Small f-number, long focal length

In a film camera, what does the film gate do?

Exposes the raw stock to light passing through the lens

Cellulose acetate replaced cellulose nitrate because:

It was less flammable

Which part of a digital camera converts light into electronic signals?

Sensor photosites

The f-stop primarily controls:

Aperture size and depth of field

How does digital ISO differ from film ISO?

Digital ISO amplifies the sensor signal; film ISO is a physical property

Tungsten lights are characterized by:

Using halogen filaments in a quartz bulb

What is the main advantage of HMI lights?

Produces extremely bright daylight-balanced light

Incident light meters measure:

Light falling onto the subject

Spot meters are useful for:

Determining contrast, highlights, and shadows of a narrow area

Watts can be calculated by:

Voltage × Amps

A slow shutter speed results in:

More light hitting the sensor

False color is used to:

Show overexposed and underexposed areas using IRE values

Zebra patterns indicate:

Areas of exposure above a set IRE threshold

Histograms on the RED camera:

Show distribution of brightness and RGB values

Which is NOT typically set before shooting on a RED camera?

Lens focal length

A Bayer filter:

Captures color information using an RGB mosaic over photosites

Digital Cinema Package (DCP) is used for:

Delivering movies to theatres in a standardized format

Depth of focus refers to:

Zone inside the camera where the image is acceptably sharp

Cine gamma curves are preferred because:

They expand highlights and dynamic range gently

Circle of confusion affects:

Depth of field and perceived sharpness

Film highlights vs digital highlights:

Film is softer; digital clips more harshly

On a smaller sensor, to get the same field of view:

Use a longer focal length

A "spiky" LED spectrum occurs because:

Each diode emits a narrow band of wavelengths

Shutter angle in video cameras:

Controls exposure per frame like film cameras

Raw stock moves through the camera in this order:

Feed reel → film gate → takeup reel

Which lens mount adapter is used on the RED camera?

PL to RF

LED lights are advantageous because:

They are compact, bi-color, and low-power

What is the main function of a processor in a digital camera?

Convert sensor signals into digital data

Focal length determines:

Lens bending power and field of view

Depth of field vs depth of focus:

DOF is in front of the lens; DOFcs is inside the camera

The circle of confusion is influenced by:

Lens quality, f-stop, image format

What is the main difference between a cine gamma curve and Rec. 709?

Cine curve captures more highlight detail with gentler slope

Which of these affects depth of field the least?

LED light color

HMI light production involves:

Electric arc in mercury vapor with metal halides

The term 'gamma' in video refers to:

Slope of the linear portion of the curve relating input light to output signal

In raw footage, what determines the intensity value of each pixel?

The light collected by the sensor photosites

Full f-stop changes affect exposure by:

Doubling or halving the light hitting the sensor