Scarse Project: Adjusting Your Monitor: Convergence and Moire


Don't bother to fiddle with these ones if you don't know what you are doing. A lot of cheaper monitors do not even have these controls. Most of them will fail these tests miserably.

Convergence

Convergence refers to the alignment of the red, green, and blue electron guns inside your CRT. If they are out of alignment, color fringes on the edges of high contrast will appear. Look at the test targets below. Colored lines should align perfectly with each other, and no color fringing should be apparent.

Moire

Moire is the coarse pattern appearing when viewing fine-stippled images. Just take a look at the test target below and see what I mean. Some good (and expensive) monitors have control that reduces appearance of the moire pattern. If you have one of those, good for you :).

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Andrei Frolov <frolov@cita.utoronto.ca>