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	<title>Brewer sum - Revision history</title>
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	<updated>2026-08-16T03:34:52Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>https://en.formulasearchengine.com/w/index.php?title=Brewer_sum&amp;diff=28164&amp;oldid=prev</id>
		<title>en&gt;Mark viking: /* Definition */ Added wl</title>
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		<updated>2013-09-11T08:14:02Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;Definition: &lt;/span&gt; Added wl&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Aperture value&amp;#039;&amp;#039;&amp;#039; may refer to:&lt;br /&gt;
&lt;br /&gt;
* &amp;lt;math&amp;gt;A_v&amp;lt;/math&amp;gt; in the [[APEX system]] (Additive System of Photographic Exposure)&lt;br /&gt;
* [[Aperture value mode]] (Av mode), an aperture priority mode on electronically controlled cameras&lt;br /&gt;
* [[Aperture]]&lt;br /&gt;
* [[F-number]]&lt;br /&gt;
&lt;br /&gt;
{{disamb}}&lt;/div&gt;</summary>
		<author><name>en&gt;Mark viking</name></author>
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