Patents: Canon 55-110 f/2 Optical Formula

[Canon Rumors Guy]

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<strong>Canon EF/EF-S 55-110 f/2

</strong>A new patent showing off a unique zoon range and speed from Canon. Would indoor sports be the target market with such a lens?</p>
<p>It’s noted that this may be for APS-C cameras, therefore an EF-S lens. <em>(thanks Michael)</em></p>
<p><strong>Patent Publication No. 2012-8344</strong></p>
<ul>
<li>2012.1.12 Release Date</li>
<li>Filing date 2010.6.24</li>
</ul>
<p><strong>Example 1</strong></p>
<ul>
<li>Focal length f = 55.5 – 112.2mm</li>
<li>Fno. = 2.0</li>
<li>2.0 zoom ratio</li>
<li>Half angle of 13.4181 – 6.712 deg.</li>
<li>Each group 18 Configuration 15</li>
<li>Inner Zoom</li>
<li>Group of the formula before feeding</li>
<li>Negative distortion that occurs in the front lens group and zooming to the telephoto side, causing a distortion in the positive side of the rear lens group is moved to the fifth group, the overall distortion suppressed .</li>
</ul>
<p><strong>Source: [<a href="http://egami.blog.so-net.ne.jp/2012-01-20">EG</a>]</strong></p>
<p><strong><span style="color: #ff0000;">c</span>r</strong></p>

 

[bigblue1ca]

</strong>A new patent showing off a unique zoon range and speed from Canon. Would indoor sports be the target market with such a lens?</p>

I'd like that to shoot volleyball up close.

 

[AG]

Would indoor sports be the target market with such a lens?

Being an f2 that makes it more than enough for a lot of video based shooting too.

If the lens is smaller than the 24-70 and 24-105 it could be a nice middle ground walking video lens.
As long as it has decent IS built in.

Just a thought.

 

[pwp]

Wow, if the f/2 IQ is there, for me this neatly takes three primes out of my bag...the 50mm, the 85mm and the 100mm.

As an f/2 zoom, it will probably be big & heavy with a price tage to match. If this lens gets out of R&D and we see a release version, it should sell it's socks off.

Another Canon game changer.

Paul Wright

 

[J]

If the lens is smaller than the 24-70 and 24-105 it could be a nice middle ground walking video lens.

Even if it was the same size as the 24-70 or 24-105, that would be more than enough for me.

 

[AprilForever]

ME GUSTA!!! ;D

I sure hope this one makes it off the drawing board and onto the shelves...

 

[Justin]

Yes please. This lens wouldn't replace any of my current lenses, but it would allow me to travel with a two lens kit. A 24mm and 55-110. Although 135mm would be the ideal end of the zoom range for this "portrait zoom."

 

[AG]

If the lens is smaller than the 24-70 and 24-105 it could be a nice middle ground walking video lens.

Even if it was the same size as the 24-70 or 24-105, that would be more than enough for me.

Yeah i kinda meant smaller as in internal mechanism not external when zoomed.

But if the IQ is there it will save a fortune for indi film makers not having to buy a whole set of basic primes (12, 24, 35, 50, 85, 100).

 

[lonelywhitelights]

Such a strange focal length... well, strange to me anyway, why not 50-100 ? why the 55-110 ? I don't know, I don't work for Canon. But still, not a particularly useful focal length for me; 16-35, 50 and 70-200 do me just fine ^_^

 

[FredBGG]

Now that is my ideal Zoom lens!!!!!

If the quality is anything like the 70-200mm 2.L IS II it will make me very happy.

 

[vuilang]

im not sure if you read through the note: it is an EF-S lens... wouldnt it kill what you're thinking?

 

[AG]

im not sure if you read through the note: it is an EF-S lens... wouldnt it kill what you're thinking?

Not if your shooting video on a 60D or 7D (or T2i etc)

 

[pwp]

im not sure if you read through the note: it is an EF-S lens... wouldnt it kill what you're thinking?

Yikes! I missed that bit.
Umm Canon, if you're listening just make this lens an EF will you please? No, make that an EF L

Thank you.

Paul Wright

 

[Michael_pfh]

Could that be a hint to the 7DII being APS-C and not APS-H? Or does APS-H also work with EF-S lenses?

 

[AG]

Could that be a hint to the 7DII being APS-C and not APS-H?

Think that hint came when they killed off APS-H with the 1DMk4 (Ok yes you can still buy it but it is very limited) when they went to the 1D-X.

 

[Edwin Herdman]

Wow, just weeks ago on POTN I and some other users were calling for nearly exactly this lens. We were mostly hoping for it to start much wider than 55mm (28mm or wider) but 55mm onward isn't too terrible. Depending on the IQ it might even be a replacement (for most purposes) for the 50mm f/1.4.

 

[Michael_pfh]

Could that be a hint to the 7DII being APS-C and not APS-H?

Think that hint came when they killed off APS-H with the 1DMk4 (Ok yes you can still buy it but it is very limited) when they went to the 1D-X.

Good point. Keeping up a sensor production line for just a single camera model does economically not make any sense unless it is a very high volume model which I do not expect the 7DII to be since most not so serious amateur photographers would rather go for a Rebel due to the lower price tag...

 

[lennywood]

this would be an ideal sit down interview video lens on the c300. and at 2.0 it would be a nice out of focus background.

 

[bvukich]

This would go quite well with the rumored f/2 replacement of the EF-S 17-55/2.8IS.

 

[vuilang]

to think shooting video with 55mm x 1.6 (60d,7D) = 88mm, it's then would be too long and focusing at F2.0 will also be very challenging.. If this lens worth any consideration of walkaround, it gotta be EF.