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Friday, November 13, 2015

New Canon Patent For EF 24-300mm f/4-5.6 IS Zoom Lens

Canon EF 28-300mm f/3.5-5.6L IS super zoom lens

I have just gotten back from my Polar Bear Photo Tour in the Canadian sub Arctic. Trying to catch up on some Canon photo news when I was away. It was quite a productive trip. The weather was 'milder' than past years and I will be processing the photos when I have a chance to rest up and look at them.

The Japanese photography blog, Egami has discovered a new Canon patent for a EF 24-300mm f/4-5.6 IS lens. Canon's current super zoom lens, the EF 28-300mm f/3.5-5.6L IS is my favorite, all-in-one lens when changing glass is impractical due to inclement weather or space restriction.

I was on a South African wildlife photo shoot in September and the EF 28-300mm lens was on one of my cameras all the time. The only 'complaint' is the lens does not accept an extender and the IS is of the older generation, with two IS modes and a 3 stop advantage.

There is definitely a niche market for a professional grade, super zoom in sports and wildlife photography. I will be very interested to trade up to the next generation super zoom if Canon decides to release one in the future.

    Patent Publication No. 2015-200870

  •         Published 2015.11.12
  •         Filing date 2014.3.31

    Example 1

  •         Zoom ratio 12.14
  •         Focal length 24.30 99.98 294.95
  •         F-number 4.10 5.76 5.88
  •         Half angle (in degrees) 41.68 12.21 4.20
  •         Image height 21.64
  •         Overall length of the lens 197.38 245.98 298.53
  •         BF 38.90 91.95 92.55

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