<p>That patent train continues for EF-M lens optical formulas, this time we see a 50-300mm f/4.5-5.6 DO lens for APS-C sized sensors. This optical formula patent shows the lens for both EF-M and EF-S mounts. It’s definitely interesting to see diffractive optics development for consumer grade cameras.</p>
<p>Patent Publication No. 2016-57444 (Google Translated)</p>
<ul>
<li>Published 2016.4.21</li>
<li>Filing date 2014.9.9</li>
</ul>
<p>Example 1</p>
<ul>
<li>Zoom ratio 5.59</li>
<li>Focal length 51.77 135.00 289.53</li>
<li>F-number 4.65 5.05 5.85</li>
<li>Half angle of view (degrees) 14.78 5.78 2.70</li>
<li>Image height 13.66 13.66 13.66</li>
<li>The total lens length 126.05 169.37 184.15</li>
<li>BF 35.50 35.50 35.50</li>
</ul>
<p><!--more--></p>
<p>Example 2</p>
<ul>
<li>Zoom ratio 5.90</li>
<li>Focal length 49.13 135.00 290.00</li>
<li>F-number 4.65 4.95 5.85</li>
<li>Half angle of view (degrees) 15.54 5.78 2.70</li>
<li>Image height 13.66 13.66 13.66</li>
<li>The total lens length 108.00 152.12 168.00</li>
<li>BF 15.69 15.69 15.69</li>
</ul>
<p>We have yet to see any full frame optical formulas for a full frame mirrorless camera body. We don’t find this surprising as we expect any such camera be compatible with EF lenses.</p>
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<em>Postponement of the Announcement of the Consolidated Results Forecast for the Fiscal Year Ending March 31, 2017 due to the Impact of the 2016 Kumamoto Earthquakes</em></p>
<p>Due to the earthquake of April 14, 2016 and subsequent earthquakes in the Kumamoto region, Sony Corporation (“Sony”) expects that it will be unable to formulate the forecast for its consolidated results for the fiscal year ending March 31, 2017 in the usual timeframe. Accordingly, Sony will postpone the announcement of the forecast when it announces the actual consolidated results for the fiscal year ended March 31, 2016, scheduled for April 28, 2016, and plans to announce the forecast in May 2016.</p>
<p>Operations at Sony Semiconductor Manufacturing Corporation’s Kumamoto Technology Center (located in Kikuchi Gun, Kumamoto Prefecture) were halted after the earthquakes and remain suspended. The extent of the damage caused by the earthquakes is being evaluated and preparations for the rehabilitation of the site are underway, with priority being placed on the safety of employees. Measures to minimize the impact on business operations are also under consideration.</p>
<p>The survey of damage to the Kumamoto Technology Center conducted so far has revealed damage to certain parts of the building, clean rooms and production equipment. The timeframe for resuming operations has yet to be determined. The Kumamoto Technology Center is the primary manufacturing site for image sensors for digital cameras and security cameras as well as for micro-display devices.</p>
<p>The impact of the earthquakes on Sony’s consolidated results continues to be evaluated. The suspension of operations at the Kumamoto Technology Center may have an adverse impact on Sony’s operating results, particularly in the Devices and Imaging Products & Solutions segments. In addition, the earthquakes have caused damage to the manufacturing facilities of certain third-party suppliers of components to Sony, the impact of which on Sony’s business operations is currently being evaluated.</p>
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Information for the EOS 5D Mark IV is coming in slowly.</p>
<p>We’re told that the new EOS 5D Mark IV, which will be announced in August will have a new battery grip, the BG-E20. We don’t know at this time if the new camera will use an LP-E6 series battery or not, though we hope it does.</p>
<p>There is no dedicated external wifi transmitter coming for the camera, so that seems to confirm that wifi will be built-in to the EOS 5D Mark IV.</p>
<p>We’re also told that the EOS 5D Mark IV will see the return of the red autofocus point in AI servo mode.</p>
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