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<strong>Wow!
</strong>The number of shots I’ve missed because I only have 35x zoom is staggering. It’s a good thing they’re working on something more!</p>
<p>That <a href="http://en.wikipedia.org/wiki/Canon_EF_1200mm_lens" target="_blank">EF 1200 f/5.6L</a> is starting to look overpriced.</p>
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<div id="attachment_6266" class="wp-caption aligncenter" style="width: 485px"><a href="http://www.canonrumors.com/wp-content/uploads/2011/03/2011_33868_fig03.png"><img class="size-full wp-image-6266" title="2011_33868_fig03" src="http://www.canonrumors.com/wp-content/uploads/2011/03/2011_33868_fig03.png" alt="" width="475" height="403" /></a><p class="wp-caption-text">4.36mm-180.0mm F2.54-5.74</p></div>
<p> </p>
<p><strong>Publication number Patent 2011-33868 (P2011-33868A)</strong></p>
<p>Release date February 17, 2011 (2011.2.17)</p>
<p><strong>Numerical Example </strong></p>
<ul>
<li>F = 4.36-180.0mm focal length</li>
<li>Fno = 2.54-5.74</li>
<li>38.63-1.23 ° angle</li>
<li>Image height is 3.49-3.88mm</li>
<li>Total lens length 94.37-134.09</li>
<li>Back Focus 9.00-6.38</li>
<li>41.24 zoom ratio</li>
<li>Two-sided aspheric</li>
</ul>
<p><strong>Optical system</strong></p>
<ul>
<li>Positive lead type zoom lens</li>
<li>Zooming, the object first and third groups, the group moved toward the second image</li>
<li>The third lens group for image stabilization</li>
<li>Expression rear focus lens group to focus on the fifth</li>
</ul>
<p><strong><span style="color: #ff0000;">c</span>r</strong>