Patent: Canon EF 10mm f/2.8

[Canon Rumors Guy]

Here’s an interesting wide angle prime optical formula patent from Canon. It’s a non-fisheye EF 10mm f/2.8 for full frame sensors.</p>
<p>Patent Publication No. 2015-102620 (Google Translated)</p>
<ul>
<li>Published 2015.6.4</li>
<li>Filing date 2013.11.22</li>
</ul>
<p>Example 3</p>
<ul>
<li>Focal length f = 10.30mm</li>
<li>Fno. 2.88</li>
<li>Half angle of view ω = 64.54 °</li>
<li>Image height 21.64mm</li>
<li>Lens length 124.58mm</li>
<li>BF 38.00mm</li>
</ul>
<p>I’m not sure if this would have been part of the <a href="http://www.bhphotovideo.com/c/product/1119028-REG/canon_9520b002_ef_11_24mm_f_4l_usm.html/BI/2466/KBID/3296/DFF/d10-v21-t1-x604080" target="_blank">EF 11-24mm f/4L</a> development, or if we might actually see a 10mm f/2.8L prime one day. A replacement for the current <a href="http://www.bhphotovideo.com/c/product/519474-USA/Canon_2045B002_Super_Wide_Angle_EF.html/BI/2466/KBID/3296/DFF/d10-v21-t1-x117125" target="_blank">EF 14mm f/2.8L II</a>?</p>

 

[H. Jones]

Wow. Now that'd be crazy to see. I've been blown away with the 11mm images coming from the 11-24 at f/4, but can you imagine a 10mm f/2.8 for astrophotography? Longer exposures without any startrails, all while at f/2.8.

I'd imagine at 10mm everything would be in focus, even at f/2.8. That'd be truly insane for sports photography, though I'm not entirely sure just yet how that'd work at such a hugely wide angle; even if you put the camera on the basket for basketball, I feel like the players would be small dots! Still, the implications of such a lens would be awesome to mess around with, if not extremely expensive.

 

[DominoDude]

Interesting. The MFD could probably be very close to the front element on that one.
Target audience will have small shoe sizes, and primarily shoot with camera on a monopod (less risk the legs will be visible...).

 

[neuroanatomist]

Strategic move: release an 'inexpensive' (for FF) 6Da for astrophotography, then follow up with a lens that would be great for astro work (assuming no/minor coma issues) and charge >$3K. 8)

Sound like a cool lens, if it ever becomes a product.

 

[Antono Refa]

Nikon has a patent for a 10mm f/4 full frame lens, Canon might be prepping to compete with it,

 

[H. Jones]

Strategic move: release an 'inexpensive' (for FF) 6Da for astrophotography, then follow up with a lens that would be great for astro work (assuming no/minor coma issues) and charge >$3K. 8)

Sound like a cool lens, if it ever becomes a product.

If a 6DA was $2000, this lens could be $2000 and the combination would still only be $200 more than the D810A body all by itself

 

[preppyak]

If a 6DA was $2000

That price point is probably a pipe dream with the 60Da never really dropping off its $1499 retail price point.

 

[geekpower]

Strategic move: release an 'inexpensive' (for FF) 6Da for astrophotography, then follow up with a lens that would be great for astro work (assuming no/minor coma issues) and charge >$3K. 8)

Sound like a cool lens, if it ever becomes a product.

If a 6DA was $2000, this lens could be $2000 and the combination would still only be $200 more than the D810A body all by itself

how could a 10/2.8 be cheaper than a 14/2.8?

 

[H. Jones]

how could a 10/2.8 be cheaper than a 14/2.8?

That price point is probably a pipe dream with the 60Da never really dropping off its $1499 retail price point.

Sorry, I didn't mean that comment to be practical in any way. It was just meant to be a comment about the D810A's price; I think it would have made more sense to do a cheaper, lighter full frame camera for an astrophotography camera. Even if a 6DA was $2500, you could still get a 16-35mm F/2.8 II with it for the price of the D810A by itself.

 

[mb66energy]

EF 2.8 10 would be very impressive but an
EF 4.0 17 @ 800 $/€ with spectacular IQ, excellent flare resistance and compact build would be a welcome addition for those of us who prefer primes but do not have the biggest wallet for lenses and personnel for the transportation of the equipment ...

 

[lol]

10mm on FF would give some seriously wide images, but I don't see how it would be in any way a replacement for a 14mm.

 

[Hjalmarg1]

It'll be a very interesting proposal for astrophotography and buildings interiors.
I can't imagine how impresive will be the images from a lens like that, it will bulky, heavy and veeerrryyy expensive though

 

[zim]

Guess it wouldn't be an STM pancake then

 

[Random Orbits]

If someone can do it, it's definitely Canon! How much diagonal FOV would 10mm be on FF? That'd be a hot cake for me, if it's below 2k $.

I'd guess it would be 3k minimum. I can't see it sell for less than the 11-24.

 

[m]

Guess it wouldn't be an STM pancake then

More like pancake with fruit, say, half a water melon on top.

 

[Pixel]

I can barely get anything usable from the 11-24 at 11mm let alone 10mm!
Just because the lens is rectilinear doesn't mean it's always going to render correctly on the edges. If there are people near the edges in your 11mm frame forget about it.

 

[Simen1]

Wow. Now that'd be crazy to see. I've been blown away with the 11mm images coming from the 11-24 at f/4, but can you imagine a 10mm f/2.8 for astrophotography? Longer exposures without any startrails, all while at f/2.8.

If its priced similarly astronomicaly i will prefer the Samyang 8mm f/3.5 SCII without the hood mounted. I would have to accept 0,67 stop behind the Canon, fisheye and dark corners and dark short sides. If that saves me 90% i wouldn't doubt a moment. Fisheye is easily defished, at the same time that dark corners are stretched to be much less pronounced.

AF for astrophoto? On a 10mm? That must be a joke. Lets just hope the Canon pricing board didn't get inspired by Leica.

 

[tron]

Oh no, I just got 11-24. Canon is laughing at us. Anyway I will try to use the 11-24 and see its strengths and shortcomings (including astro compared to 14 2.8 II). Anyway 10 2.8 may not be available for the next two years (or more or ever...)

 

[StudentOfLight]

A backfocus of 38mm... wouldn't that be an EF-S lens?

 

[tron]

Image height 21.64mm = R => D = 2*R = 43.28 = SQRT(24**2 + 36**2)

It is a Full Frame Lens.