Archive for: superzoom

Canon EF-S 18-300 f/3.5-5.6 IS STM on the Way? [CR1]

Canon EF-S 18-300 f/3.5-5.6 IS STM on the Way? [CR1]

A new EF-S superzoom
There is really only one lens in Canon lineup that I can’t think of a nice thing to say about it, and that is the EF-S 18-200 f/3.5-5.6 IS. From the subpar optics, no USM, terrible build quality, high price and the industry worst “lens creep”. What can I say that’s positive?

I have been told that a new superzoom with STM should be expected in 2013. There will be a superzoom for EF-S and and and affordable non-L one for EF, apologies to the 28-300L, but you’re too big and expensive for most people to carry around. No mention on the focal length for the EF lens, but a 24-300 would be nice. The EF-S version will get the new STM motor found in the recent EF 40 f/2.8 STM and 18-135 f/3.5-5.6 IS STM. Both could possibly be available in the 3rd or 4th quarter of 2013.

I definitely welcome an upgrade to the 18-200, and a nice long walk-around for full frame would be nice too.

cr

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Canon Patents 42x Zoom Lens!

Canon Patents 42x Zoom Lens!

Wow!
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.

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

cr

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