Night Shift requires macOS Sierra 10.12.4 and one of these Mac computers, using the built-in display or the displays listed[…]
The only third-party displays listed are the LG UltraFine 5K and 4K. Night Shift seems to work fine on my Dell U3014, though.
One of my favorite features of f.lux is the ability to disable it based on what application is in the foreground. For example, I have Adobe Photoshop marked as an exception. as f.lux changing the color temperature of my display could cause me problems while editing photographs.
Apple’s Night Shift has no concept of exceptions. If the screen is warmer, it’s warmer for all applications.
F.lux can be disabled for an hour or longer from its menu bar app, while Night Shift can be toggled on and off via Notification Center.
I found that the Notification Center toggle only appears when Night Shift is on, so it can only be used to turn it off. [Update (2017-03-28): The toggle is available when Night Shift is off, but it’s scrolled off the top of the screen, with no visual indication that it’s there. It’s the same with Do Not Disturb, which I’ve known about for years, but I keep forgetting.]
The good new is that, unlike Flux, Night Shift works well with Black Light.
The mechanism used by Night Shift is different. It does not rely on the gamma curve, which is good as it’s not fighting with Black Light.
Previously: Night Shift in iOS 9.3.
Night Shift’s defaults are pretty gentle, and for most people they won’t reduce the impact of a screen by very much.
To use an example that explains why I’m pretty convinced they’re not doing enough, consider that the warmest Night Shift setting makes an iMac show more light at night than the iPad that Harvard studied back in 2012.
So starting there, f.lux removes 4-5x as much by default as Night Shift does, and yet it seems like most people will continue to think the two are similar, when they aren’t in the same range.
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