Apple Color 1.0 User Manual download pdf (Page 115)

Chapter 6 Monitoring 115

Â The ideal viewing distance for a given monitor is approximately five times the

vertical height of its screen.

Â The color of the room within your working field of vision should be a neutral gray.

These precautions will help to prevent eye fatigue and inadvertent color biasing while

you work and will also maximize the image quality you’ll perceive on your display.

Calibrate Your Monitor Regularly

Finally, calibrate your monitor regularly. For maximum precision, some monitors have

integrated probes for automatic calibration. Otherwise, you can use third-party probes

and calibration software to make the same measurements. In a purely broadcast

setting, you can also rely on the standard color bars procedure you are used to.

Adjust the Color Interface for Your Monitoring Environment

The Color interface is deliberately darkened in order to reduce the amount of light spill

on your desktop. If you want to subdue the interface even further, the UI Saturation

setting in the User Prefs tab of the Setup room lets you lower the saturation of most of

the controls in the Primary In, Secondaries, and Primary Out rooms, as well as the color

displayed by the video scopes.

Using Display LUTs

Color supports the use of 3D look up tables (LUTs) for calibrating your display to match

an appropriate broadcast standard, or to simulate the characteristics of a target output

device (for example, how the image you’re correcting will look when printed to film).

Color is represented on CRTs, LCD flat panels, video projectors, and film projectors

using very different technologies. If you show an identical test image on two different

types of displays—for example, a broadcast display and a video projector—you can

guarantee there will be a variation in color between the two. This variation may not be

noticeable to the average viewer, but as a colorist, you need a predictable viewing

environment that adheres to the standards required for your format, and to make sure

that you aren’t driven crazy by changes being requested as a result of someone

viewing the program on a display showing incorrect color.

As if that weren’t enough, there is also variation within a single category of device:

Â CRT monitors from different manufacturers use different phosphor coatings.

Â Digital projectors are available using many types of imaging systems.

Â Projected film is output using a variety of printing methods and film stocks.

All this inevitably results in significant color variation for any image going from one

viewing environment to another. One solution to this is calibration using LUTs.

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Apple Color 1.0 User Manual Page 115