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Author Topic: Canon Patents This Week  (Read 4739 times)

Canon Rumors

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Canon Patents This Week
« on: June 22, 2011, 10:54:22 PM »

New Macros and Tilt Shifts Coming?

Recent patents have shown new Macro and Tilt-Shift lenses. Below I’ve listed them.


Explain a patent

You cannot patent a lens per se, but you can patent an optical formula. I think it’s safe to talk about patents, as many of them have turned into actual consumer products.





Canon 50mm 1:1 f/2.8 Macro





 





Canon 90mm f/2.8 Tilt Shift



 





Canon 35mm f/2.8 1:2 Macro



 


Patent Publication No. 2011-107313

Published 2011.6.2

Filled 2009.11.16


50mm f/2.8 1:1 Macro



  • Focal distance f=50.20mm

  • Fno=2.90

  • Half angle of view 23.32 deg.

  • Image height 21.64mm

  • Lens length 84.64mm

  • Back focus 40.01mm

  • Macro -0.950x


90mm f/2.8 Tilt Shift



  • Focal distance f=90.40mm

  • Fno=2.90

  • Half angle of view 17.90 deg.

  • Image height 29.20mm

  • Lens length 117.18mm

  • Back focus 65.43mm

  • Macro -0.480x


35mm f/2.8 1:2 Macroa



  • Focal distance f=35.20mm

  • Fno=2.90

  • Half angle of view 31.58 deg.

  • Image height 21.64mm

  • Lens length 102.44mm

  • Back focus 40.10mm

  • Macro -0.480x


 


cr


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Canon Patents This Week
« on: June 22, 2011, 10:54:22 PM »

ronderick

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Re: Canon Patents This Week
« Reply #1 on: June 22, 2011, 11:04:34 PM »
It's great to see rumors on another TS-E lens. Being a fan of TS-E lenses, I certainly hope that the TS-E 90mm makes it to the market first.

...so where's the TS-E 45mm update?
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CR Backup Admin

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Re: Canon Patents This Week
« Reply #2 on: June 22, 2011, 11:31:05 PM »
Right, Canon has super computers running around the clock trying to find a optical formula out of the billions of possibilities that procuces improved results.  I would then expect them to kick out promising formulas and look at them more closely,perhaps  build a few models, and if the design passes, apply for a patent.

This protects the design that they have spent so much money to discover.

As for putting it into production, then a new set of parameters come into play.  The market, cost to produce, and cost of tooling versus expected sales.  Only a tiny few get by that hurdle.

jsixpack

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Re: Canon Patents This Week
« Reply #3 on: June 22, 2011, 11:31:56 PM »
i wonder if the 50mm will have the hybrid IS, it would make a powerful competitor, since nikon doesn't have a VR 50ish mm macro


J. McCabe

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Re: Canon Patents This Week
« Reply #4 on: June 23, 2011, 12:01:45 AM »
I tend to believe those patents will turn into real lenses, possibly due to my hopes Canon will upgrade it's primes.

Canon 50mm 1:1 f/2.8 Macro - this could be an upgrade of the EF 50mm f/2.5 Compact Macro. It's a 20+ years old lens, it's due for an upgrade.

Canon 90mm f/2.8 Tilt Shift - after the TS-E 24mm was upgraded, it wouldn't be surprising if the TS-E 90mm (and 45mm) would be upgraded. The 0.48x macro could be a response to the Schneider-Kreuznach PC-TS Makro-Symmar 4/90 HM

Canon 35mm f/2.8 1:2 Macro - this one looks a little odd to me.

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Re: Canon Patents This Week
« Reply #5 on: June 23, 2011, 08:05:11 AM »
I'd take the 35mm macro, although the 35/2 isn't bad for close ups already... sometimes it is refreshing to use a wide angle macro to keep the background instead of the longer focal length stuff that blurs everything out.
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pgabor

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Re: Canon Patents This Week
« Reply #6 on: June 23, 2011, 09:23:23 PM »
I think the 35mm macro is actually a good news, because now people will have the option to choose this one instead of the old and outdated 35mm f2. Of course in case if it comes to life (i hope so)

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Re: Canon Patents This Week
« Reply #6 on: June 23, 2011, 09:23:23 PM »

moreorless

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Re: Canon Patents This Week
« Reply #7 on: June 24, 2011, 03:54:59 AM »
i wonder if the 50mm will have the hybrid IS, it would make a powerful competitor, since nikon doesn't have a VR 50ish mm macro

I wouldnt be supprized if Canon kept the IS exclusively on the L macro's since theres less room to upgrade IQ than on most lenses.

If the 35mm macro was an EF-s lens I could see that maybe having it and personally as a crop user that lens interests me more.

Woody

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Re: Canon Patents This Week
« Reply #8 on: June 25, 2011, 12:28:02 PM »
Compared to the Nikon rumored lenses, these seem dull.

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Re: Canon Patents This Week
« Reply #8 on: June 25, 2011, 12:28:02 PM »