Canon Patent - EF 28-560mm f/2.8-5.6L IS Super Zoom Lens

Egami has uncovered a Canon patent for a super zoom lens, the EF 28-560mm f/2.8-5.6. I have reported earlier about Canon's plan on releasing the EF 200-600mm lens some time in 2017. This new glass will be a nice addition or replacement to the current EF 28-300mm f/3.5-5.6L IS super zoom, which is one of my favorite glass for wildlife photography. If Canon does decided to release this lens, it will be rather large and heavy because the current EF 28-300mm glass already weighs almost 3.7 pounds. You can see my equipment bag and see my works on MichaelDanielHo.com

In July, I reported Canon filed a 'crazy' patent for a EF 40-800mm f/4.5-5.6 lens. A patent is just that, a claim on some intellectual property. It is a long way from being a prototype, let alone a marketable product.

Patent Publication No. 2016-142795

• Published 2016.8.8
• Filing date 2015.1.30

Example 1

• Zoom ratio 18.86
• Focal length 28.80 119.57 543.20
• F-number 2.88 4.56 5.88
• Half angle of view (degrees) 36.91 10.26 2.28
• Image height 21.64 21.64 21.64
• The total lens length 281.07 331.07 385.01
• BF 53.05 61.31 40.00
• The effective diameter of the front lens 120.00

Canon Patent - EF 40-800mm f/4.5-5.6 Super Zoom Lens

Egami has uncovered another Canon patent. This time it's the EF 40-800mm f/4.5-5.6 lens. Frankly, I think this is just a project for some engineers with too much time on their hands. A patent is far from being a prototype, let alone a production model lens.

Currently, the Canon EF 28-300mm f/3.5-5.6L IS is my favorite Super Zoom lens in their lineup. It affords me a wide focal length to choose from when it is impractical or impossible to change lens in the middle of a shoot. The drawback is the weight, Can you imagine the weight of a 40-800mm lens?

I think the chances of this lens coming to market in its present form is zero to none, although Canon is expected to announce a Super Zoom lens sometime in 2017. This type of focal length is very popular and Nikon, Sigma and Tamron all have their models on the market now.

At the present time, I am in Alaska on my annual wildlife photography shoot and was informed by my sources Canon will be adding a brand new feature to the upcoming EOS-5D Mark IV camera. They are playing their cards very close to their chest and not revealing much except to generate maximum publicity and excitement for the launch next month. You can see my equipment bag and works on MichaelDanielHo.com


Patent Publication No. 2016-128846 (Google Translated)

• Published 2016.7.14
• Filing date 2015.1.9
• Zoom ratio 19.42
• Focal length 41.09 92.80 152.20 225.00 797.99
• F-number 4.67 4.66 4.65 4.67 5.71
• Angle of view 27.79 13.13 8.10 5.50 1.55
• Image height 21.65
• Overall length of the lens 489.32
• BF 39.28
• Inner zoom