Page 295 - Windows 10 May 2019 Update The Missing Manual: The Book That Should Have Been in the Box

Night Light

The blue tones of a flat-panel screen have been shown to mess up your
body’s production of melatonin, the “You’re getting sleeeeeeepy” hormone.
As a result, your circadian rhythm gets disrupted, and it’s harder to fall

asleep.

The best solution is to not use your phone, tablet, or computer right before
bed. But who are we kidding?

Therefore, Windows 10 offers Night Light, a mode that gives your screen a

warmer, less blue tint. Here, on the Display settings screen, you can turn
Night Light on or off manually. (You can also use the Action Center tile for

that purpose; see “The Notifications List”). The “Night light settings” link
lets you adjust exactly how yellowish you want the screen to get and also
offers a Schedule option, so Night Light will fire up (and down) at the times

you pick.

Windows HD Color

In one regard, digital cameras are still pathetic: Compared with the human

eye, they have terrible dynamic range.

That’s the range from the brightest to darkest spots in a single scene. If you
photograph someone standing in front of a bright window, you’ll get just a

black silhouette. The camera doesn’t have enough dynamic range to handle
both the bright background and the person in front of it.

You could brighten up the exposure so the person’s face is lit—but then

you’d brighten the background to a nuclear-white rectangle.

A partial solution: HDR (high dynamic range) photography. That’s when
the camera takes three (or even more) photos simultaneously—one each at

dark, medium, and light exposure settings. Its software combines the best
parts of all three, bringing details to both the shadows and the highlights.
(WCG, or wide color gamut, is the same idea.)

Nowadays, these much more vivid, lifelike formats have come to both

photos and videos, provided that you have a compatible monitor (marketed