By eHow Electronics Editor
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Once you've mastered telescopic object magnification, it's time to increase the brightness and detail of what you're viewing. Use a telescope filter to increase contrast anytime or reduce glare during daytime viewing. Examine the polar ice caps of Mars or try to count the infamous rings of Saturn. Colored telescope filters alter the image you see by refracting all other colors in the visible light spectrum. They're effective and easy to use.