Canon Developing Faster And More Accurate Auto-Focus For Continuous Shooting (Patent)


Egami (translated) spotted a patent filed by Canon regarding a faster and more accurate AF method for continuous shooting. If I understood the patent correctly, the method is using the “classic” AF method (using the dedicated phase difference sensor) for the first shot, and phase difference AF on the “image plane” (i.e. the image sensor) for all subsequent shots. The advantage: you do not need to move the mirror for focusing after the first shot, hence allowing for a higher frames per seconds rate.

Could this patent point to the EOS 7D replacement we expect to be announced in September? Possibly. A higher fps is one of the features most of us think will be implemented in the camera Canon is going to announce.

  • Patent Publication No. 2014-142372
    • Published Date 2014.8.7
    • Filing date 2012.1.22
  • Canon patents
    • I use the phase difference AF the first time
      • I use the OVF
    • I use the image plane phase difference AF with the second and subsequent
      • There is no need to wait for the stable state up mirror, the mirror down

Another Mention Of A Possible Canon Medium Format Camera

Canon Medium Format Camera

If you follow Canon Watch you know that I am highly sceptical regarding the rumors that point to a Canon medium format camera. However, Photography Bay cites a source “who has had advanced knowledge in the past” claiming that Canon may announce a camera with a “sensor bigger than 35mm” in September (which means for Photokina).

While I am still not convinced about the possibility of such an announcement, I know that I may also be wrong. There is no doubt that Canon has the facilities and engineering know-how to produce a medium format sensor. Only time will tell.

What do you think?

[via Photography Bay]

Canon USA Awarded 2014 Conservation Colleague Award By Friends Of Acadia

Image © Canon

Canon press release:

Canon U.S.A. Awarded 2014 Conservation Colleague Award By Friends Of Acadia

Company Honored for Helping to Preserve and Protect Acadia National Park, Maine

MELVILLE, N.Y., August 4, 2014 – Canon U.S.A., Inc., a leader in digital imaging solutions, is proud to announce that it has been awarded the 2014 Conservation Colleague Award for the Company’s involvement with Friends of Acadia, a non-profit organization that helps to preserve, protect and promote the cultural and natural resources of Acadia National Park, located on Mt. Desert Island, Maine. Established in 1996 by Friends of Acadia, the Conservation Colleague Award honors corporations and other businesses deeply involved in protecting the park’s values.

Read more

Looking Inside The Canon EF 16-35 f/4 IS (Lensrentals)

Canon EF 16-35 f/4 IS
Taking apart the EF 16-35 f/4 IS (image courtesy: R. Cicala/Lensrentals)

Lensrental’s Roger Cicala and Aaron Closz took apart Canon’s new EF 16-35mm f/4L IS USM to see how (and how well) it is build.

The weather sealing appears to be pretty good (better than usual). The article is long and comes with lots of pictures shot while disassembling the EF 16-35 f/4 IS. R. Cicala writes:

Now that I’ve seen the insides I’m very optimistic that this lens will be less likely to deteriorate optically over time, and will be more easily corrected when it does.

Canon EF 16-35 f/4 IS price check:  [via lensrentals]

Canon EF 16-35 f/4 IS
Image from Canon’s White Paper (note that the aperture is also moving)

Canon EF 16-35mm f/4L IS