Canon EOS C80 - Recording under High-Frequency Light Sources; Flicker Reduction

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Shutter Speed
Recording Under High-Frequency Light Sources
Flickering may occur when recording video under a rapidly blinking light source. When you execute [Auto Clear
Scan Setting], the camera detects the frequency of the light source (in a range of 50.0 Hz to 2011.2 Hz) and
shoots at a shutter speed that matches the blinking cycle, reducing flickering.
1 Select > [ v Camera Setup] > [Shutter Mode] > [Clear Scan].
2 Select > [
v Camera Setup] > [Auto Clear Scan Setting] > [OK].
3 Change the shutter speed to the displayed speed.
• When you select [OK], the shutter speed changes to the displayed speed.
When [No flicker detected.] is displayed, or when the flickering does not disappear even after changing to the
displayed shutter speed, perform the following operations:
• Execute [Auto Clear Scan Setting] again.
• Execute [Auto Clear Scan Setting] after changing the camera’s orientation by about 90 degrees.
• Adjust manually.
- Set a control dial / control ring to [Clear Scan (Steps)] or [Shutter] (A 206).
- With [Clear Scan (Steps)], you can change the shutter speed to 2, 3, or 4 times, or to 1/2, 1/3, or 1/4 times
the frequency set using [Auto Clear Scan Setting].
- With [Shutter] you can make fine adjustments.
NOTES
NOTES
• The accuracy of high-frequency flickering detection may be reduced under the following conditions.
- When there are repetitive patterns (such as grid or stripe patterns).
- When the subject is in constant movement.
- In extreme brightness or darkness.
- When there are multiple light sources in the screen.
- When the blinking light source is too small.
- When the subject illumination is low.
Flicker Reduction
You can perform the following procedure to have the camera automatically detect and reduce flicker.
Select > [ v Camera Setup] > [Flicker Reduction] > [Automatic].
NOTES
NOTES
• When recording under artificial light sources such as fluorescent, mercury or halogen lamps, the screen may
flicker depending on the shutter speed. You may be able to avoid flicker by setting the shutter speed mode to
[Speed] and the shutter speed to a value matching the frequency of the local electrical system: 1/50* or 1/100
for 50 Hz systems, 1/60 or 1/120 for 60 Hz systems.
* May not be available depending on the frame rate.
Flicker reduction cannot be used in the following cases.
• During slow & fast motion recording when the following shooting frame rates are not used:
- 59.94 Hz: 30P/60P/120P
- 50.00 Hz: 25P/50P/100P
• When the system frequency is 24.00 Hz. Or when the frame rate is 23.98P when using a recording mode
other than slow & fast motion recording.