What is the difference between 1.8 and 2.2 gamma

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Submit a News Tip! Reading mode: Light Dark. Login Register. Best cameras and lenses. Started Jul 16, Discussions. Forum Threaded view. Jul 16, Hi all Just a quick question. Reply to thread Reply with quote Complain. Reply Reply with quote Reply to thread Complain. Rob, Absolutely go for a gamma of 2.

To equalize color handling in mixed Windows and Mac environments, it's a good idea to standardize the gamma values between the two operating systems. Changing the gamma value for the Mac OS is easy; but Windows provides no such standard feature. Since Windows users perform color adjustments through the graphics card driver or separate color-adjustment software, changing the gamma value can be an unexpectedly complex task.

If the monitor used in a Windows environment offers a feature for adjusting gamma values, obtaining more accurate results will likely be easier. If we know that a certain image was created in a Mac OS environment with a gamma value of 1. To digress slightly, standard gamma values differ between Windows and Mac OS for reasons related to the design concepts and histories of the two operating systems.

Windows adopted a gamma value corresponding to television 2. The Mac OS has a long history of association with commercial printing and desktop publishing applications, for which 1.

On the other hand, a gamma value of 2. A gamma value of 2. On the preceding page, we mentioned that the standard gamma value in a Windows environment is 2. However, due to the individual tendencies of LCD monitors or the LCD panels installed in them , it's hard to graph a smooth gamma curve of 2.

This phenomenon is particularly marked for dark and light tones, often appearing to the eye of the user as tone jumps, color deviations, and color breakdown. Device specs provide one especially useful figure to help us determine whether a monitor has an internal gamma correction feature: A monitor can be considered compatible with internal gamma correction if the figure for maximum number of colors is approximately 1,,, or 68 billion or if the specs indicate the look-up table LUT is or bit.

An internal gamma correction feature applies multi-gradation to colors and reallocates them. While the input from a PC to an LCD monitor is in the form of color information at eight bits per RGB color, within the LCD monitor, multi-gradation is applied to increase this to 10 bits approximately 1,,, colors or 12 bits approximately 68 billion colors. The optimal color at eight bits per RGB color approximately Let's look at a little more information on the LUT.

The LUT is a table containing the results of certain calculations performed in advance. The results for certain calculations can be obtained simply by referring to the LUT, without actually performing the calculations. Gamma 1. This setting is ideal for watching movies, television or situations where scenes or pictures are too dark.

Originally designed as a compromise for Mac and PC this setting is a perfect middle ground for users that want to utilize the flexibility of multiple gamma settings. This gamma setting is the true standard with Windows and Mac fully supported and the most widely used setting.

Adopted because of true color output, gamma 2. Perfect for HD television production, and the Rec. These various settings allow flexibility to the user, to choose which setting is the ideal, depending on the situation. The gamma standard for DCI Digital Cinema Initiative and movie production, this setting provides the truest color for users to produce cinema and film.

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