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Author Topic: Patent: Canon EF 35mm f/1.4L II  (Read 5761 times)

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Patent: Canon EF 35mm f/1.4L II
« on: October 11, 2013, 06:27:09 PM »

Canon EF 35 f/1.4L II

A new patent for a Canon EF 35m f/1.4L II has shown it’s lovely head. We’ve seen patents previously and have heard various versions of the lens have been in testing for the past few years.


Patent Publication No. 2013-195747



  • Publication date 2013.9.30

  • Filing date 2012.3.21


Example 1



  • Focal length f = 14.17mm

  • Fno. 2.89

  • Half angle ω = 56.78 °

  • Image height 21.64mm

  • The overall length of the lens 133.50mm

  • BF 40.23mm

  • 14 pieces in 11 groups Lens Construction

  • 2 pieces of 2 aspherical surface

  • The effective diameter of the front lens 69.96mm


Example 2



  • Focal length f = 24.50mm

  • Fno. 2.80

  • Half angle ω = 41.45 °

  • Image height 21.64mm

  • The overall length of the lens 92.07mm

  • BF 38.07mm

  • 8 group 9 lenses configuration

  • 2 pieces of 2 aspherical surface

  • The effective diameter of the front lens 34.58mm


Example 3



  • Focal length f = 35.50mm

  • Fno. 1.45

  • Half angle ω = 31.36 °

  • Image height 21.64mm

  • The overall length of the lens 135.01mm

  • BF 38.56mm

  • 11 pieces Lens Construction 9 group

  • One piece of one aspherical surface

  • The effective diameter of the front lens 49.79mm


Also included in this patent are formulas for a 14mm f/2.8 and a 24 f/2.8.


Canon EF 35 f/1.4L $1479 at B&H Photo | Amazon


Source: [EG]


cr


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Patent: Canon EF 35mm f/1.4L II
« on: October 11, 2013, 06:27:09 PM »

neuroanatomist

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #1 on: October 11, 2013, 06:33:21 PM »
SWEEEEEEET. Bring on the 35L II!!
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Ricku

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #2 on: October 11, 2013, 06:49:25 PM »
How many patents is it now? ???

I thought (hoped) this lens was right around the corner, but then Canon files another patent. That kinda means that the lens is far away from production, doesn't it?

I hope it's not the same with the 14-24L, because I am hoping that lens is right around the corner too.

Also included in this patent are formulas for a 14mm f/2.8 and a 24 f/2.8.
I'm guessing the 24 f/2.8 has IS, and that we'll see that lens way ahead of the 35L II.
« Last Edit: October 11, 2013, 06:57:20 PM by Ricku »

bereninga

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #3 on: October 11, 2013, 06:53:59 PM »
Hopefully it will be weather-sealed.

JohnDizzo15

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #4 on: October 11, 2013, 07:08:13 PM »
With the new lens tech and the current standards/expectations for resolution, I have pretty high hopes for sharpness and aberration control (especially since it will have to at the very least be on par with the S35). I for one am excited.

Ricku

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #5 on: October 11, 2013, 07:13:52 PM »
With the new lens tech and the current standards/expectations for resolution, I have pretty high hopes for sharpness and aberration control (especially since it will have to at the very least be on par with the S35). I for one am excited.
Yes it has to be at least on par with the S35. But since the 35L II price tag will be ridiculously high, it really must (or should) be notably better than the S35. I just don't see how Canon will be able to pull that off.. The S35 is pretty much optical perfection.

My guess is the 35L II will be as sharp as the S35, but 2 - 3 times more expensive.

thien135

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #6 on: October 11, 2013, 08:10:58 PM »
Too LATE, Sigma already got to the goal line with 35mm. Save money, live better.

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #6 on: October 11, 2013, 08:10:58 PM »

Dylan777

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #7 on: October 11, 2013, 08:17:21 PM »
It will be a up hill battle for Canon on 35mm. New Sig 35mm is quite solid - from price, lens build and IQ.
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Mt Spokane Photography

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #8 on: October 11, 2013, 09:24:55 PM »
How many patents is it now? ???

I thought (hoped) this lens was right around the corner, but then Canon files another patent. That kinda means that the lens is far away from production, doesn't it?

I hope it's not the same with the 14-24L, because I am hoping that lens is right around the corner too.

Also included in this patent are formulas for a 14mm f/2.8 and a 24 f/2.8.
I'm guessing the 24 f/2.8 has IS, and that we'll see that lens way ahead of the 35L II.

The number of patents does not mean its near production.  Canon continually has computers running to try and find optical formulas that will produce a superior lens.  Unfortunately, many of them are not practical to mass produce because of near impossible tolerances, for example.  They get patented as long as they are good, even if there are no plans to start making them in quantity.
 
Once production starts, you will still see more patents, the process never stops, and you see the patent about 2 years after Canon filed it.

IsaacImage

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #9 on: October 11, 2013, 09:37:04 PM »
Hopefully it's going to be a bit faster , and a bit sharper than Siggy ))
And please Canon ....please .... do us a favour - 14-24,

Chosenbydestiny

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #10 on: October 11, 2013, 09:53:25 PM »
How many patents is it now? ???

I thought (hoped) this lens was right around the corner, but then Canon files another patent. That kinda means that the lens is far away from production, doesn't it?

I hope it's not the same with the 14-24L, because I am hoping that lens is right around the corner too.

Also included in this patent are formulas for a 14mm f/2.8 and a 24 f/2.8.
I'm guessing the 24 f/2.8 has IS, and that we'll see that lens way ahead of the 35L II.


They just recently released a 24mm 2.8 IS...
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cliffwang

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #11 on: October 12, 2013, 01:12:47 AM »
Sigma makes great 35mm prime @ great price already.  I just wonder when Canon can release the 35mm L MK2 and what the price will be.
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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #12 on: October 12, 2013, 02:45:18 AM »
I'm sure Canon know the market for 35 f1.4 II; they are absolutely aware of Sigma's offering too so I expect the new lens to be considerably better (built and optics) especially as it will be Expensive!
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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #12 on: October 12, 2013, 02:45:18 AM »

Marsu42

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #13 on: October 12, 2013, 05:13:17 AM »
I'm sure Canon know the market for 35 f1.4 II; they are absolutely aware of Sigma's offering too so I expect the new lens to be considerably better (built and optics) especially as it will be Expensive!

Canon doesn't to be much much better, if at all (built and optics) than 3rd party, it's sufficient that they're the original with everything that goes along with it - no incompatibilities at all even with newer cameras, in-camera lens profiles, cps support. Given that, many people will happily spend a mere €1000 more.

Also one constant advantage of Canon lenses is the af system which is bound to work better with Canon's pro 5d3/1dx system since it requires firmware lens-camera adjustment (lens groups), for the outdated 5d2/6d af it probably doesn't matter that much.

Rienzphotoz

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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #14 on: October 12, 2013, 05:36:52 AM »
mere €1000 more.
Kind sir, please donate "mere €1000" to me ;D ... with it I shall buy the Sigma 35 f/1.4 and donate the rest to charity in your name. Jokes aside, this is an interesting replacement from Canon, because they have a competent challenger in Sigma 35mm f/1.4
« Last Edit: October 12, 2013, 05:39:04 AM by Rienzphotoz »
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Re: Patent: Canon EF 35mm f/1.4L II
« Reply #14 on: October 12, 2013, 05:36:52 AM »