Patent: Canon 2mm f/1.4 Lens for Small Sensors

[Canon Rumors]

<p>A patent for a 2mm f/1.4 lens from Canon has appeared. This type of lens would be for a small sensor device such as a compact video camera or action camera.</p>
<p><a href="http://www.canonrumors.com/wp-content/uploads/2014/10/canon2mmpatent.jpg"><img class="aligncenter wp-image-17610 size-full" src="http://www.canonrumors.com/wp-content/uploads/2014/10/canon2mmpatent.jpg" alt="canon2mmpatent" width="368" height="443" /></a></p>
<p><strong>Patent Publication No. 2014-197128 (Google Translated)</strong></p>
<ul>
<li>Published  Date 2014.10.16</li>
<li>Filing date 2013.3.29</li>
</ul>
<p><strong>Example</strong></p>
<ul>
<li>Focal length f = 2.03mm</li>
<li>Fno. 1.44mm</li>
<li>Half angle ω = 59.18 °</li>
<li>Image height 3.00mm</li>
<li>The overall length of the lens 32.17mm</li>
<li>BF 0.51mm</li>
<li>Canon patents</li>
<li>Focus position of the periphery of the screen is shifted If you install the dome cover</li>
<li>And suppress the deviation of the focus by changing the air space of the lens in accordance with the presence or absence of the dome cover</li>
</ul>
<p>Source: [<a href="http://egami.blog.so-net.ne.jp/2014-10-17" target="_blank">EG</a>]</p>
<p><strong><span style="color: #ff0000;">c</span>r</strong></p>

 

[lintoni]

Just a bit too big for a EOS smartphone! ;D

 

[Pag]

I wonder how wide a (very improbable) full frame 2 mm lens would be...

 

[preppyak]

I wonder how wide a (very improbable) full frame 2 mm lens would be...

I cant even imagine. This is what a 6mm lens looks like...a 2 mm lens would probably have to warp back over the camera body

 

[rs]

This looks like a rectilinear lens. A 2.03mm lens on a 1/3" (iPhone sensor size) 7.21x crop sensor frames like a 14.64mm lens on FF. If the projection of typical canon fisheyes is anything to go by, ~15mm gives a 180' FoV across the diagonal. A 14.64mm distortion free rectilinear lens would give a 112' FoV - remarkably close to the 59.18' half angle quoted in the patent.

 

[Antono Refa]

I wonder how wide a (very improbable) full frame 2 mm lens would be...

I cant even imagine. This is what a 6mm lens looks like...a 2 mm lens would probably have to warp back over the camera body

The 6mm lens is a circular fisheye, and for that focal length has to look backwards.

A rectilinear lens can't have an angle of view wider than 180mm, so it couldn't possibly look back.

 

[ajfotofilmagem]

Seems to me a lens for GoPro cameras type.

 

[Khufu]

I wonder how wide a (very improbable) full frame 2 mm lens would be...

I cant even imagine. This is what a 6mm lens looks like...a 2 mm lens would probably have to warp back over the camera body

The 6mm lens is a circular fisheye, and for that focal length has to look backwards.

A rectilinear lens can't have an angle of view wider than 180mm, so it couldn't possibly look back.

This is the post-Einsteinian 21st Century - I demand greater physics! I reckon there's a visual equivalent to the Sonic Boom to be discovered, if only we can shave a few more millimetres offa' these UWA lenses...