Classroom in a book


Zoom in with your camera lens so the Focus and Exposure chart takes up most  of the frame. 3



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Adobe Premiere Pro CS5 - Classroom in a Book

2
Zoom in with your camera lens so the Focus and Exposure chart takes up most 
of the frame.
3
If necessary, enable the slider and adjust the percentage of frame value on the 
Camera Setup Assistant panel to crop the frame to include just the Focus and 
Exposure chart.


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ADOBE PREMIERE PRO CS5 CLASSROOM IN A BOOK
325
Setting your focus
To set up your focus, adjust the focus on your camcorder until the focus indicator 
in the Camera Setup Assistant component grows as large as possible. You will also 
notice the focus fine-tuning in the monitor window.
Setting your iris/exposure
To set up your iris/exposure, adjust the exposure on your camera so that the expo-
sure meter in the Camera Setup Assistant panel grows as far to the right as possible 
but remains even. Achieving this exposure gives you the maximum range of darks 
to whites without overexposing the video. Note that the top exposure line indicates 
darks, and the bottom exposure line indicates lights.
About exposure
Exposure is determined by multiple factors: lighting, iris/aperture, shutter speed, 
and gain.
t
Adjust the physical lighting of your scene (ambient or created) to achieve the 
best exposure.
t
Adjust the aperture of your camera to let more or less light into the camera. 
(The wider your iris, the shallower your depth of field.) Try to achieve optimal 
exposure via the aperture, since boosting brightness via gain can inject noise 
into the video and lower quality.
t
Adjust the shutter speed to allow light into the camera for shorter or longer 
periods of time. (Shutter speeds of 1/60 second are typical for shoots not 
involving very fast action.)
t
Adjust the gain to set the level of electronic lighting enhancement. Boosting 
gain to achieve the desired exposure should be considered a last resort after 
adjusting lighting, aperture, and even shutter speed, since gain injects noise 
into the video.


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