&lt;h4&gt;Lens long zoom 1 PRJ&lt;/h4&gt;&lt;p&gt;To support optimal projector installation and performance in a wide range of environments seven types of optical lens ranging from short-throw to long-throw lens are available with glass materials for better focus and large apertures for a brighter image. The lenses are made in Japan to ensure the highest quality.&lt;br /&gt;&lt;br /&gt;Throw Ratio: 3.71 ~ 5.57 - XGA&lt;br /&gt;Throw Ratio: 3.76 ~ 5.64 - WXGA&lt;br /&gt;Throw Ratio: 3.58 ~ 5.38 - WUXGA&lt;/p&gt;&lt;table class=features&gt;&lt;thead&gt;&lt;tr&gt;&lt;th colspan=2&gt;Features&lt;/th&gt;&lt;/tr&gt;&lt;/thead&gt;&lt;tbody&gt;&lt;tr&gt;&lt;td class=feature&gt;Lens Throw Ratio&lt;/td&gt;&lt;td&gt;&lt;li&gt;3.71 ~ 5.57 - XGA &lt;li&gt;3.76 ~ 5.64 - WXGA &lt;li&gt;3.58 ~ 5.38 - WUXGA  &lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;