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Crazy Patent: Canon EF 40-800mm f/4.5-5.6

Crazy Patent: Canon EF 40-800mm f/4.5-5.6

By Canon Rumors | July 20, 2016 | Canon Patents

Here’s a crazy optical formula patent from Canon, an EF 40-800mm f/4.5-5.6 superzoom lens. The folks at Egami say it’s for a full frame DSLR and is an internal zoom lens.

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

As pointed out on our forum, the patent contains 4 lens designs, two of them are for full frame, and two are for a PowerShot application. The likelihood of such a lens coming to fruition in full frame form? I’d say zero chance, but stranger things have happened.

A Canon DSLR First Coming to EOS 5D Mark IV [CR2]

A Canon DSLR First Coming to EOS 5D Mark IV [CR2]

By Canon Rumors | July 19, 2016 | Canon DSLR Rumors

The teasing of features and information has started ahead of the August announcement of the EOS 5D Mark IV from Canon.

We’re told that the new camera will have a DSLR first from Canon, but the source was unsure if any other manufacturer has or will have the same feature in one of their cameras. While we’re told that the feature “isn’t major”, it is something “a lot of shooters will be happy to have”.

We expect a lot more information over the next few weeks, and we’re working hard daily trying to get some new bits of information.

What sort of “DSLR first” feature do you want to see in a Canon DSLR?

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