The number of shots I've missed because I only have 35x zoom is staggering. It's a good thing they're working on something more!

That EF 1200 f/5.6L is starting to look overpriced.

2011 33868 fig03 - Canon Patents 42x Zoom Lens!
4.36mm-180.0mm F2.54-5.74


Publication number Patent 2011-33868 (P2011-33868A)

Release date February 17, 2011 (2011.2.17)

Numerical Example

  • F = 4.36-180.0mm focal length
  • Fno = 2.54-5.74
  • 38.63-1.23 ° angle
  • Image height is 3.49-3.88mm
  • Total lens length 94.37-134.09
  • Back Focus 9.00-6.38
  • 41.24 zoom ratio
  • Two-sided aspheric

Optical system

  • Positive lead type zoom lens
  • Zooming, the object first and third groups, the group moved toward the second image
  • The third lens group for image stabilization
  • Expression rear focus lens group to focus on the fifth


Some of our articles may include affiliate links. If you purchase through these links, we may earn an affiliate commission at no extra cost to you.

Comments are closed.