With the Datacolor Spyder5Elite, you can calibrate all of your monitors, laptop screens, and projectors quickly and easily and keep them fine-tuned to ensure consistent color and gray-scale accuracy.

Datacolor introduced the Spyder4 line of highly advanced colorimeters able to calibrate monitors, laptops, projectors, TVs, iPads and even iPhones.

A look at calibrating colors in OS X with the Spyder 3 colorimeter. It's clear people have the option between best-looking colors and uniformity of colors across multiple displays.

The calibration process works by coordinating manual changes to the TV's settings with data returned via a USB connection from the colorimeter to your computer.

With the Datacolor Spyder5Elite, you can calibrate all of your monitors, laptop screens, and projectors quickly and easily and keep them fine-tuned to ensure consistent color and gray-scale accuracy.

The Datacolor Spyder4 Pro is an affordable display calibration system that will improve your monitor's image quality.

The Spyder5 Elite is Datacolor's top-of-the-line colorimeter tool this year, providing users with an easy to use experience to accurately calibrate and recalibrate their external monitors ...

And a third is color calibration. But there are always workarounds, and DataColor, the company behind the Spyder colorimeter, will now let photographers and designers color-manage their iPads.

The color calibration tool did the best job it could i would guess. I don't think the colorimeter is defective. It just can't adjust the output for your screen so it's not green-tinted.