<?xml version="1.0" encoding='utf-8'?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Diffraction-limited system - Page 5 - Wikipedia">
<p>
<a accesskey="1" href="page.php?w=Diffraction-limited_system&amp;p=4">1.Previous</a><br />
<a accesskey="3" href="page.php?w=Diffraction-limited_system&amp;p=6">3.Next</a>
</p>
<p>a <b>diffraction-limited</b> observation is one that achieves the resolution of a theoretically ideal objective in the size of instrument used. However, most observations from Earth are <a href="page.php?w=Astronomical_seeing">seeing</a>-limited due to <a href="page.php?w=Atmosphere_of_Earth">atmospheric</a> effects. Optical telescopes on the <a href="page.php?w=Earth">Earth</a> work at a much lower resolution than the diffraction limit because of the distortion introduced by the passage of light through several kilometres of <a href="page.php?w=Turbulence">turbulent</a></p><p>
<a accesskey="1" href="page.php?w=Diffraction-limited_system&amp;p=4">1.Previous</a><br />
<a accesskey="3" href="page.php?w=Diffraction-limited_system&amp;p=6">3.Next</a>
</p>

<do type="prev" label="Search">
        <go href="search.wml"/>
</do>

</card>
</wml>
