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A patent for a Tamron 85mm f/1.8 VC has appeared. Is Tamron following Sigma and getting into the quality prime market, but with Vibration Correction (Image Stabilization)?</p>
<p>Canon’s 85mm offerings, the EF 85mm f/1.2L II and EF 85mm f/1.8 could probably both use a refresh, though we haven’t heard anything about either in a very long time. I can’t see Canon ever adding IS to a fast (f/1.2) 85mm lens, but we might see something like an 85mm f/2 IS STM one day.</p>
<p>Patent Publication No. 2015-96915 (Google Translated)</p>
<ul>
<li>Published 2015.5.21</li>
<li>Filing date 2013.11.15</li>
</ul>
<p>Example 1</p>
<ul>
<li>Focal length f = 82.87-82.02-77.72mm</li>
<li>Fno. 1.85-1.88-2.01</li>
<li>Full field angle 2ω = 28.59-27.41-23.18 °</li>
<li>FB 18.04mm</li>
</ul>
<p>Tamron patent</p>
<ul>
<li>Of positive and negative negative 3-group configuration</li>
<li>Inner focus (the second group)</li>
<li>Anti-vibration (Group 3)</li>
</ul>