camera basics Flashcards
(47 cards)
Using a shutter angle of 180 degrees on a video camera running at 24fps, is the same as setting the shutter speed at ________.
1/48th of a second
A high frame rate of 120fps played back at 24fps, will result in ________.
slowing down motion
On a waveform monitor, what does 100 IRE represent?
The legal broadcast limit for white.
This tool can measure the amount of light falling onto any part of a scene and calculate an exposure value for that area.
Incident light meter
A response curve can be manipulated to _________.
change contrast in picture
A full frame 35mm camera sensor always has three individual CCD chips for capturing red, green, and blue light.
False
Zebras that appear on a monitor indicate:
A brightness value in the scene over a certain percentage.
Which of the following can be used to increase the exposure of a scene? (check all that apply):
Switching to a lens with a larger maximum T stop.
It is normal industry procedure to approach every shoot with the confidence that you can fix it in post and not worry too much about getting it right in camera.
False
A RAW file has the following attributes (check all that apply):
Files sizes are usually much larger than other file types.
Post processing is required to view the image.
_______ in digital photography is interference that appears as wavy lines on top of a fine pattern in an image. It is caused by the camera’s sensor grid interacting optically with a grid-like pattern in the scene, and is very difficult to correct for in post.
Moire
Which type of camera shutter can distort a fast moving subject in the frame.
Rolling shutter
Which statement about chroma subsampling is true?
4:2:2 is a good compromise between data size and the amount of color information retained.
A histogram can be described as:
A simple graphic representation of a scene’s brightness range from 0 to 255.
A vectorscope is most useful for evaluating _________.
color balance
_____ are a calculated value for lens speed, and _____ are an actual measured speed value for every individual lens.
F stops; T stops
Dynamic range for a camera is normally measured in _____.
f stops
Ultra High Definition has pixel dimensions of ___
3840x2160
Viewing a video captured in log will appear flat unless a ____
is applied.
LUT
A larger camera sensor will inherently resolve ___________ depth of field, most notably at larger apertures.
less
Setting a monitor to false color can show:
Where skin tones fall as a brightness value within the scene.
Adding gain to your exposure… (check all that apply)
Can add noise to shadow areas.
Can be measured as an increase in ISO or decibels.
Capturing an 8K resolution file for use in a movie being delivered in full HD is __________.
oversampling
Clipping highlights can result from:
Overexposure of the scene
