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A new ultrawide zoom lens for APS-C EOS M cameras has appeared. This may be a replacement for the excellent EF-M 11-22mm f/4-5.6 IS STM. The only knock against that lens is that it’s not wide enough. Image Stabilization is not part of the patent, which is a notable omission.</p>
<p><strong>Japan Patent Application 2017-219644</strong></p>
<ul>
<li><strong>Focal distance: </strong>9.27 13.35 17.70</li>
<li><strong>F number: </strong>4.12 4.84 5.57</li>
<li><strong>Field angle: </strong>55.84 45.67 37.66</li>
<li><strong>Image height: </strong>13.66 13.66 13.66</li>
<li><strong>Whole length of the lens:</strong> 61.48 56.10 54.43</li>
<li><strong>BF: </strong>10.29 13.62 16.52</li>
</ul>
<p><a href="https://www.canonnews.com/mirrorless-9-18mm-uwa-lens-patent">Canon News</a> thinks that the primary goal of the design is to keep the focus group as small as possible to speed up AF on mirrorless cameras and for video.</p>
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