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To read about our monitor tests in-depth, please check out Display Testing Explained: How We Test PC Monitors. We cover brightness and contrast testing on page two.
Uncalibrated – Maximum Backlight Level
The PX275CP is more than bright enough for any indoor environment. Though it comes up a bit short of its 350-nit manufacturer claim, 317 nits is plenty of output. Few users will need more than 200 nits unless they sit by a very bright window.
The black level is about average for IPS panels in general, as is the measured default contrast ratio of 956.3:1. Though a few premium IPS monitors have achieved scores of 1,200:1, the PX275CP provides an adequate dynamic range for both general use and gaming.
After Calibration to 200 nits
Calibration doesn’t change contrast in any visible way. Obviously, the MSI’s VA panel will take the trophy in this test but for an IPS screen, the PX275CP delivers average numbers. I noted a slightly higher gamma value in the color tests you’ll see on page four, which means the picture looks a tad more saturated (which is a good thing)
ANSI (intra-image) contrast stays consistent at 935.6:1, also about average for IPS panels. The PX275CP delivers solid performance for the price and when viewed side-by-side with more expensive monitors and easily matches their picture quality.
Current page: Brightness and Contrast
Prev Page Response, Input Lag, Viewing Angles and Uniformity Next Page Grayscale, Gamma and ColorChristian Eberle is a Contributing Editor for Tom's Hardware US. He's a veteran reviewer of A/V equipment, specializing in monitors. Christian began his obsession with tech when he built his first PC in 1991, a 286 running DOS 3.0 at a blazing 12MHz. In 2006, he undertook training from the Imaging Science Foundation in video calibration and testing and thus started a passion for precise imaging that persists to this day. He is also a professional musician with a degree from the New England Conservatory as a classical bassoonist which he used to good effect as a performer with the West Point Army Band from 1987 to 2013. He enjoys watching movies and listening to high-end audio in his custom-built home theater and can be seen riding trails near his home on a race-ready ICE VTX recumbent trike. Christian enjoys the endless summer in Florida where he lives with his wife and Chihuahua and plays with orchestras around the state.

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