Canon Patent for 11-24mm f/3.5-4.5 Lens


Egami (translated) spotted a patent filed by Canon for an 11-24mm f/3.5-4.5 lens.

Machine translated patent description:

  • Patent publication number
    • Release date
    • Filing date
  • Example 3
    • Zoom ratio 2.07
    • Focal length 11.61-15.50-24.07mm
    • Fno. 3.63-3.96-4.69
    • Half angle ω = 49.64-41.38-29.58 °
    • Image height Y = 13.66mm
    • Overall length of the lens 133.0-129.1-133.3mm
    • BF 3.26mm
    • Negative positive and negative positive 4-group zoom
    • Inner focus (Lf part of the first group)
  • [0016]According to the present invention has a high optical performance over the entire object distance range, yet fast focusing easy zoom lens and optical system is obtained.
  • [0035]And at the same time using a low dispersion material in the material of the focus lens in the present invention, the lateral magnification of the focusing lens unit that corresponds to the drive amount during focusing, by appropriately setting the refractive index and Abbe number of the material and the like of the focus lens, and focus I have to reduce the aberration fluctuations of the time.

Deal: Canon EOS 5D Mark III – $2,500 (and Black Friday deals)

 Black Friday deals Hot deal by eBay seller getitdigital (99.3% positive ratings): the Canon EOS 5D Mark III on sale for $2,499.99.Free shipping in US and limited quantity.

Black Friday deals start early this year. Amazon US has a dedicated page, Black Friday camera deals are listed here. There are also plenty of Canon deals at eBay. More Black Friday-ready deal pages at Adorama and B&H Photo.

Have also a look at the Canon Direct Store’s listed refurbished Canon DSLRs, Powershot cameras, and lenses, as well as on Canon’s special deals page. And they have a special sale: $100 of on select Powershot cameras.

Black Friday deals

Guest Post: Canon EOS 7D Mark II Hands-On and First Impression

EOS 7D Mark II Hands-On

EOS 7D Mark II, ISO 8000

This is a guest post by South Wales (UK) based freelance photographer Simon King. He took his new EOS 7D Mark II to two rugby games and shares his impression. All images are copyrighted and used with permission.

I recently took delivery of Canon’s new 7D Mark II APS-C camera, I got to take the camera out with me to a Professional Rugby Match on Friday 31st October. As the 7D Mark II is designed as a sports and action camera this was an ideal opportunity to put it through it’s paces. This isn’t a technical pixel peeping review of the camera more first a impressions feel for how it performed.

As a freelance photographer I have to buy my own equipment, I currently shoot with two Canon 5D Mark III’s but for sport I really need something with a higher frame rate and deeper buffer. I was giving serious consideration to the 1DX but that is a significant investment so when the rumours of a 7D Mark II starting getting stronger I held off until I was certain that the camera was a reality. Canon announced the 7D Mark II on 15th September and I pre-ordered one as soon as they were listed […]. The specifications of the camera looked exactly what I needed; AF on a par or better than the 5D3; 10 frames per second with a huge buffer and the added benefit of a 1.6 crop factor. I owned the original 7D and in fairness it is a great camera but the image quality suffered a lot when the ISO was raised beyond around 1250, in my experience. So the one thing that concerned me about the 7D Mark II was if the image quality would be good enough for my purposes.

When sample images come out for a new camera they don’t tend to show the kind of images in the situations that matter to me and the same was true of the 7D Mark II. But when Scott Kelby showed some sample images he had taken at an American Football game I started to get very hopeful that the camera would more than meet my needs.

Read Simon King’s hands-on after the break

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Canon USA Earns Center of Excellence Certification for Customer Support

Canon USA
Canon press release:

Canon U.S.A. Earns Center Of Excellence Certification By BenchmarkPortal

Company Secures Top Award for Customer Service and Support for Sixth Consecutive Year

MELVILLE, N.Y., November 17, 2014 – Canon U.S.A., Inc., a leader in digital imaging solutions, is proud to announce that for the sixth consecutive year it has earned the Center of Excellence certification by BenchmarkPortal, placing its customer support center in the top 10 percent for efficiency and effectiveness in the technical support category. The Center of Excellence is a prestigious recognition based on best-practice metrics drawn from the world’s largest database of objective and quantitative data that is audited and validated by researchers from BenchmarkPortal.

“When I visited the Canon center six years ago, I was very impressed with the matching of deep product knowledge with contact center best practices,” said Bruce Belfiore, CEO of BenchmarkPortal. “Maintaining high levels of excellence in the center over a period of years is a wonderful testimony to the contact center management team, the frontline agents – as well as senior managers, who support and encourage this excellence. Canon call center professionals have shown exceptional dedication and results, for which I commend them.”

Read more

More Canon EOS 7D Mark II Real World Sample Pics

7D Mark II

Imaging Resource added more photos to their EOS 7D Mark II sample pictures page. All samples are real world pictures, no lab setting photos. Original size pictures available in both RAW and JPG format.

The EOS 7D Mark II is the unbeaten champion in the APS-C world. Read more about the EOS 7D Mark II‘s rugged weather sealing, the highly advanced AF, and the industry leading high ISO performance. More coverage on the EOS 7D Mark II can be seen here.

7D Mark II

The Canon EOS 7D Mark II is shipping in the US:

EOS 7D Mark II price check for your country: Amazon, B&H, Adorama, Canon USA, Digitalrev, eBay

Reader Contest – Most Liked Photos of Last Week

Sudhir Nambiar‎ – shot with an EOS 5D Mark III

Thanks all for your great pics. Round-up of the most liked reader pics of the week. How it works:

1) Submit your picture with a short description on Canon Watch’s Facebook page
2) Like and comment the pictures from other readers on the Photo Stream
3) A selection of the most liked pictures will be posted every Sunday here on Canon Watch

Show the world what you can do with a Canon camera!

Jessi Dunn Photography‎ – taken with Canon 5D Mark III and EF 16-35mm f/2.8L II lens


Vasily Bulanov‎ – Ko Kho Khao, Phangnga, Thailand. Canon EOS M, EF-M 11-22mm + vari-ND filter


Andre Yabiku‎ – wich one? At left St Francis of Assisi church and right Our Lady of Carmo church at Mariana Brazil. Shot with 6D + 17-40 f4L


Jessi Dunn Photography‎ -Photo taken with Canon 5D Mark III and EF 16-35mm f/2.8L lens


Ronald Byram‎ – Hawk in Flight. Taken with Canon 70D and a 70-200 L Lens