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Author Topic: Canon 16-35 f/2.8 DO Patent  (Read 6933 times)

Mt Spokane Photography

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #15 on: August 04, 2011, 04:31:00 PM »
Canon has started including mirrorless cameras in their patents over the last couple of years, they are specifically mentioned.

From the translation of the patent description:

Thus, by applying the zoom lens of this invention to imaging devices, such as a single-lens reflex camera interchangeable lens, an imaging device with high optical performance is realizable. This invention is applicable also like an SLR (Single Lens Reflex) camera without a quick return mirror.

They are covering all the bases.

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #15 on: August 04, 2011, 04:31:00 PM »

dstppy

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #16 on: August 04, 2011, 04:32:51 PM »
I didn't see it anywhere . . . how likely is it to show up without IS?

http://www.canonrumors.com/

FUNNY. :P

I meant, I don't see that it says it's image stabilized anywhere.

I remember from another patent that some feature was supposedly added later but not on the original patent.

To that ends, I was wondering what the possibility of a replacement 16-35 showing up without IS was.
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Mt Spokane Photography

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #17 on: August 04, 2011, 04:46:49 PM »
IS is not mentioned in the patent.  The patent is all about using DO elements in a wide angle zoom to reduce CA.  I doubt if we will see the exact lenses covered in the patent, but we may see a IS version.

DJL329

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #18 on: August 04, 2011, 11:56:06 PM »
IS is not mentioned in the patent.  The patent is all about using DO elements in a wide angle zoom to reduce CA.  I doubt if we will see the exact lenses covered in the patent, but we may see a IS version.

Correct me if I'm wrong, but I do not think there are any EF lenses with IS (not EF-S!) that do not reach at least 100mm.  Therefore, I doubt this (or even the oft-rumored 24-70mm f/2.8L II) will have IS.
« Last Edit: August 04, 2011, 11:58:06 PM by DJL329 »
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dstppy

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #19 on: August 05, 2011, 08:59:55 AM »
IS is not mentioned in the patent.  The patent is all about using DO elements in a wide angle zoom to reduce CA.  I doubt if we will see the exact lenses covered in the patent, but we may see a IS version.

That's (potentially good news), I know a lot of people really rag on IS, but, in lieu of time to set up/use a tripod, it's been pretty helpful to me.

Correct me if I'm wrong, but I do not think there are any EF lenses with IS (not EF-S!) that do not reach at least 100mm.  Therefore, I doubt this (or even the oft-rumored 24-70mm f/2.8L II) will have IS.

Wow, I just checked and that (currently) appears to be the case . . .
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neuroanatomist

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #20 on: August 05, 2011, 09:06:41 AM »
Correct me if I'm wrong, but I do not think there are any EF lenses with IS (not EF-S!) that do not reach at least 100mm.  Therefore, I doubt this (or even the oft-rumored 24-70mm f/2.8L II) will have IS.

Wow, I just checked and that (currently) appears to be the case . . .

For Canon, yes.  But Nikon has an FX-format 16-35mm lens with VR...
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Cropper

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #21 on: August 05, 2011, 09:29:00 AM »
This lens makes absolutely no sense to me, and should probably be another one of those patents that will never see the light of day.

I just can´t see how such a lens could surpass the current 16-35, particularly considering the weak IQ (lack of contrast, sharpness and sometimes terrible halo fringing), not to mention the hefty pricetag that is normaly associated with DO.
It seems that presently the only real advantage of DO is the ability to reduce the size and weight of a lens, which in this case is not really an issue.

However even with it's current flaws and shortcomings I do think that the DO technology is a very interesting concept and if properly developed could breed some great lenses in the future, specially if applied to long super telephoto lenses.
The 600 f5.6 DO patent that was issued some time ago seemed to make a lot more sense and if produced could be a very good solution for someone (like me !) considering a very long focal length that is still compact and handholdable.

 

 

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #21 on: August 05, 2011, 09:29:00 AM »

Edwin Herdman

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #22 on: August 07, 2011, 03:42:05 PM »
I just can´t see how such a lens could surpass the current 16-35, particularly considering the weak IQ (lack of contrast, sharpness and sometimes terrible halo fringing), not to mention the hefty pricetag that is normaly associated with DO.
I just can't see how you are making such comments based on a lens that you haven't used.

Yes, the DO lenses traditionally have these weaknesses - but the last DO lenses released are over half a decade old, too.  I wouldn't expect Canon to have all the demons totally worked out by this point, but I personally think it's encouraging that they're still trying.

If they manage to make the lens more compact (hopefully that results in a closer minimum focus, though obviously it doesn't guarantee it), if not lighter, that is reason enough for them to keep trying.  One of the purposes of Canon's continued patent applications is that they prevent some other party from running with a technology like this when it's ready for prime time.

Heidrun

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #23 on: August 07, 2011, 04:17:03 PM »
If they can make a DO 16-35 good. Then i want one
The more compact. The better on long shutter photos
« Last Edit: August 08, 2011, 05:19:14 AM by Heidrun »

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Re: Canon 16-35 f/2.8 DO Patent
« Reply #23 on: August 07, 2011, 04:17:03 PM »