Adjust the contrastThe contrast calibration test is probably the most difficult to adjust with the naked eye. Your brain will play tricks on you as you make adjustments.
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Mark W. Kaelin has been writing and editing stories about the IT industry, gadgets, finance, accounting, and tech-life for more than 25 years. Most recently, he has been a regular contributor to BreakingModern.com, aNewDomain.net, and TechRepublic.