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Colour Gamut Figures And Image Quality

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Category: General Photography

Higher Colour Gamut Figures Aren't Always Better - Learn more about colour gamut and what a wide colour gamut means.

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As mentioned in our previous article, colour gamut is an important factor to consider when choosing an LCD monitor. However, after reading what a colour gamut is and how it's used, you may think that an LCD monitor which has a wide colour gamut would be the best choice but actually, this isn't always true. 
 
Some LCD monitors which say they have a wide colour gamut often do so by promoting the area ratios of specific colour gamuts (the triangles on the diagram). However, these are only area ratios so even though the monitors colour space may have the same shape as Adobe RGB on the diagram it doesn't actually share the same coverage.
Triangles

In fact, very few products actually include the entire Adobe RGB and NTSC colour gamuts. This is where the user must not get confused when 'ratio' and 'coverage' are used as they're actually different things. For example, when trying to gauge what an LCD monitor's colour gamut is, even if it states that it has an  Adobe RGB ratio of 100% in terms of area, it will feature coverage of less than 100 percent. 

Since coverage impacts practical use, it's important to avoid the mistake of seeing a higher figure as better.

When we check the colour gamut of an LCD monitor, it's also important to remember that a wide colour gamut is not necessarily equivalent to high image quality. Yes, colour gamut is one specification used to measure this, but colour gamut alone doesn't determine the quality of images.

Visit the EIZO UK website. 

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