Nikon Z 9 Reference Manual page 865

Turn the Product Off Before Removing or Disconnecting the Power
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Source
Removing or disconnecting the power source while the camera is on could
damage the product. Particular care should be taken not to remove or
disconnect the power source while pictures are being recorded or deleted.
Monitor/Viewfinder
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•
The monitors (including viewfinder) are constructed with extremely high
precision; at least 99.99% of pixels are effective, with no more than 0.01%
being missing or defective. Hence while these displays may contain pixels
that are always lit (white, red, blue, or green) or always off (black), this is not
a malfunction. Pictures recorded with the device are unaffected. Your
understanding is requested.
•
Pictures in the monitor may be difficult to see in a bright light.
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Do not apply pressure to the monitor. The monitor could malfunction or
suffer damage. Dust or lint on the monitor can be removed with a blower.
Stains can be removed by wiping the monitor lightly with a soft cloth or
chamois leather. Should the monitor break, care should be taken to avoid
injury from broken glass. Be careful that liquid crystal from the monitor
does not touch the skin or enter the eyes or mouth.
•
Should you experience any of the following symptoms while framing shots
in the viewfinder, discontinue use until your condition improves:
- nausea, eye pain, eye fatigue,
- dizziness, headache, stiffness in your neck or shoulders,
- queasiness or loss of hand-eye coordination, or
- motion sickness.
•
The display may rapidly flicker on and off during burst photography.
Watching the flickering display could cause you to feel unwell. Discontinue
use until your condition improves.
Bright Lights and Back-Lit Subjects
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Noise in the form of lines may in rare cases appear in pictures that include
bright lights or back-lit subjects.
Caring for the Camera and Battery: Cautions
865