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lensfun-0.3.2-8.1.mga7.i586.rpm

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   &#160;<span id="projectnumber">0.3.2.0</span>
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<p>Struct to save real focal length, which can depends on the (nominal) focal length.  
 <a href="structlfLensCalibRealFocal.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="lensfun_8h_source.html">lensfun.h</a>&gt;</code></p>
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Public Attributes</h2></td></tr>
<tr class="memitem:ae60d9e05fd470a511f586a73d4971862"><td class="memItemLeft" align="right" valign="top">float&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structlfLensCalibRealFocal.html#ae60d9e05fd470a511f586a73d4971862">Focal</a></td></tr>
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<tr class="memdesc:ac3a7600f502c835708bba5f2f443d000"><td class="mdescLeft">&#160;</td><td class="mdescRight">Real focal length.  <a href="#ac3a7600f502c835708bba5f2f443d000">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Struct to save real focal length, which can depends on the (nominal) focal length. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae60d9e05fd470a511f586a73d4971862">&#9670;&nbsp;</a></span>Focal</h2>

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          <td class="memname">float lfLensCalibRealFocal::Focal</td>
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<p>Nominal focal length in mm at which this calibration data was taken </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac3a7600f502c835708bba5f2f443d000">&#9670;&nbsp;</a></span>RealFocal</h2>

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<p>Real focal length. </p>
<p>When Lensfun speaks of “focal length”, the <em>nominal</em> focal length from the EXIF data or the gravure on the lens barrel is meant. However, especially for fisheye lenses, the real focal length generally differs from that nominal focal length. With “real focal length” I mean the focal length in the paraxial approximation, see <a href="http://en.wikipedia.org/wiki/Paraxial_approximation">http://en.wikipedia.org/wiki/Paraxial_approximation</a>. Note that Hugin (as of 2014) implements the calculation of the real focal length wrongly, see <a href="http://article.gmane.org/gmane.comp.misc.ptx/34865">http://article.gmane.org/gmane.comp.misc.ptx/34865</a>. </p>

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<hr/>The documentation for this struct was generated from the following file:<ul>
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