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Author Topic: Patent: Canon 11-24mm f/4 Lens  (Read 25250 times)

ewg963

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #30 on: January 25, 2014, 02:40:00 PM »
I wish it was f/2.8...

The price might go near $3000 for that...
I understand that.  ;)
+1 Fish nothing surprises me these days.


I don't really understand that, but I expect that ... even if it is f/4 ;D
I know that type of glass won't cheap but I'll settle for the f/4

I would not be surprised if this f/4 lens went for $3K given the size of the first few lens elements!
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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #30 on: January 25, 2014, 02:40:00 PM »

ewg963

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #31 on: January 25, 2014, 02:41:33 PM »
I wish it was f/2.8...

The price might go near $3000 for that...
I understand that.  ;)


I don't really understand that, but I expect that ... even if it is f/4 ;D
I know that type of glass won't cheap but I'll settle for the f/4

I would not be surprised if this f/4 lens went for $3K given the size of the first few lens elements!
=+1 Fish...nothing surprises me these days.
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Etienne

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #32 on: January 25, 2014, 03:15:20 PM »
Full-frame, rectilinear, sharp, contrasty and flare resistant .. . save one for me!

traveller

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #33 on: January 25, 2014, 03:16:44 PM »
I find myself agreeing with Dilbert (God forbid  ;) ) on this one: fix the bread and butter lenses first before moving on to exotica.

hendrik-sg

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #34 on: January 25, 2014, 04:06:24 PM »
compared with the 17mm TS 11mm FF seems possible. if the image from the TS would be compresst to normal FF Image circle, there would result a 11mm 2.8 lens. Considering, that this patant is a zoom 11mm f 4.0 seems believable

comparing the angle of view mentioned in the patent with the calculator linked here, it seems to be a Full Frame lens. Not clear is, why the image high is less than 24mm, wich would be the hight of a FF sensor.

fotoray

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #35 on: January 25, 2014, 04:09:15 PM »
This lens not identified as L lens.  Does it make sense that it should be an L lens, or can you get high quality optics at this focal length without L design standards?
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rs

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #36 on: January 25, 2014, 04:44:38 PM »
This lens not identified as L lens.  Does it make sense that it should be an L lens, or can you get high quality optics at this focal length without L design standards?
The product name of the proposed lens is never in the patent. However, without wanting to get myself proved wrong again, I'm not aware of any Canon full frame zoom lenses with a constant aperture which aren't L lenses.

I don't think there's one lens with such a wide angle of view (or even close) and f2.8

Look at this lens here: Nikkor 6mm f/2.8 fisheye lens
OK, I walked into that one  ::)
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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #36 on: January 25, 2014, 04:44:38 PM »

fish_shooter

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #37 on: January 25, 2014, 05:13:55 PM »
compared with the 17mm TS 11mm FF seems possible. if the image from the TS would be compresst to normal FF Image circle, there would result a 11mm 2.8 lens. Considering, that this patant is a zoom 11mm f 4.0 seems believable

comparing the angle of view mentioned in the patent with the calculator linked here, it seems to be a Full Frame lens. Not clear is, why the image high is less than 24mm, wich would be the hight of a FF sensor.

Image height refers to the distance of the image measured from the optical axis; also used for the X-axis in MTF graphs. http://www.learn.usa.canon.com/resources/articles/2013/reading_MTF_charts.shtml
Maximum image height equals half the diagonal distance of the format; so 2x that equals the diagonal of the format. Recall this is about 43mm.
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tianxiaozhang

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #38 on: January 25, 2014, 05:48:38 PM »
If they released this, it would be the ultimate landscape zoom assuming the optics are good...

A perfect fit between the more effect-driven 8-15mm f/4 fisheye and the event-oriented 16-35mm f/2.8...

Hope this one comes out!  Given Canon's current lineup, it makes more sense than a 14-24 f/2.8.

Why does everyone assume a wide angle is perfect for landscape?

FWIW, I've watched professionals use the 16-35 when shooting models...

Because land is bigger than models...........

11mm might be a bit wide for most fashion work..
24~28mm works great..

LetTheRightLensIn

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #39 on: January 25, 2014, 06:47:37 PM »
I wish it was f/2.8...

personally I'd prefer f/4: smaller, lighter, less expensive, perhaps better optically

jrista

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #40 on: January 25, 2014, 07:32:46 PM »
I wish it was f/2.8...

personally I'd prefer f/4: smaller, lighter, less expensive, perhaps better optically

Agreed. Especially for the most likely use case, landscapes on a tripod, you would probably be stopping down anyways. Even for astrophotography, you'll be on a tripod and at high ISO.

privatebydesign

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #41 on: January 25, 2014, 08:00:57 PM »
F4 sucks, well it does for me personally. Sure I use the 17 TS-E, an f4, a lot, but it is specialised and no real issue as an f4. As a general purpose ultrawide upgrade to the 16-35 f2.8 the focal length is very interesting, but f4 kills it for too many situations. Iso performance does not replace aperture, neither does IS, I want all three.
Too often we lose sight of the fact that photography is about capturing light, if we have the ability to take control of that light then we grow exponentially as photographers. More often than not the image is not about lens speed, sensor size, DR, MP's or AF, it is about the light.

jrista

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #42 on: January 25, 2014, 08:04:41 PM »
F4 sucks, well it does for me personally. Sure I use the 17 TS-E, an f4, a lot, but it is specialised and no real issue as an f4. As a general purpose ultrawide upgrade to the 16-35 f2.8 the focal length is very interesting, but f4 kills it for too many situations. Iso performance does not replace aperture, neither does IS, I want all three.

If you need the wide aperture for boke, certainly. I would still like to see a 14-24 f/2.8 L from Canon at some point in the future. Especially if it can top Nikon's IQ corner to corner.

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #42 on: January 25, 2014, 08:04:41 PM »

Ruined

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #43 on: January 25, 2014, 08:08:54 PM »
F4 sucks, well it does for me personally. Sure I use the 17 TS-E, an f4, a lot, but it is specialised and no real issue as an f4. As a general purpose ultrawide upgrade to the 16-35 f2.8 the focal length is very interesting, but f4 kills it for too many situations. Iso performance does not replace aperture, neither does IS, I want all three.

I don't see 11-24mm focal length as "general purpose ultrawide".  24mm is as long as you can go, and that focal length is not general purpose due to the noticable distortion.   11-24mm is pretty much a landscape ultrawide, because the distortion can actually enhance the look of landscape photos (unlike people photos).  So again, I think f/4 works for this focal length because you will likely do as good or more likely better than a faster lens stopped down and that is where you will be 99% of the time with this focal length.  If you want a lens for the 1% where you want some special effect ultrawide w/ crazy bokeh, the existing 24mm f/1.4L II would be better anyway than an f/2.8 lens.

16-35mm, that I can see as "general purpose ultrawide" because 35mm very much can do general purpose without the very obvious distortion that 24mm has.  And we already have that at f/2.8...  I can see wanting a general purpose improvement to the 16-35 ii, but I think that should be in a 16-35 iii, not a 11-24...
« Last Edit: January 25, 2014, 08:43:26 PM by Ruined »

privatebydesign

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #44 on: January 25, 2014, 08:55:03 PM »
You might not, I do.

Many, many, Nikon users use the 12-24 f2.8 as a general purpose ultra wide zoom, I don't see that Canon users, who have gotten so used to lackluster ultrawide zooms of mediocre performance and length, should be unable to utilize a single millimeter of extra width below our Nikon cousins. You might, I don't.
Too often we lose sight of the fact that photography is about capturing light, if we have the ability to take control of that light then we grow exponentially as photographers. More often than not the image is not about lens speed, sensor size, DR, MP's or AF, it is about the light.

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Re: Patent: Canon 11-24mm f/4 Lens
« Reply #44 on: January 25, 2014, 08:55:03 PM »