Sony PCG-705 - Manual (Page 139)

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Furniture and posture - Sit in a chair with good back support and
armrests. Adjust the level of the chair so your feet are flat on the floor.
A footrest may make you more comfortable. Sit in a relaxed, upright
posture and avoid slouching forward or leaning far backward.
Viewing angle of the computer’s display - Use the display's tilting
feature to find the best position. You can reduce eye strain and
muscle fatigue by adjusting the tilt of the display to the proper
position. Adjust the contrast or brightness settings of the display also.
Lighting - Choose a location where windows and lights do not create
glare and reflection on the display. Use indirect lighting to avoid
bright spots on the display. You can also purchase accessories for
your display that help reduce glare. Proper lighting adds to your
comfort and work effectiveness.
Tilt stand - You use the tilt stand to place the computer at an angle
that allows comfortable typing.
Placement of an external display - When using an external display,
set the display at a comfortable viewing distance. Make sure the
display screen is at eye level or slighdy lower when you are sitting in
front of the monitor.
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