Archive for: EF 100-400 f/4.5-5.6L IS II

Image of the New 100-400?

*UPDATE 2*
Another suggestion from a man who knows everything about lenses.  He thinks it’s a “28-300 with filter barrel removed”.

*UPDATE*
It seems most people think it’s the Sony 70-200, though the body does look like a Canon.

I’m not sure
Below is an image posted on the Google Plus account of Peter Norvig. In the low resolution image, a lens that I don’t recognize is being used. I have compared it to the 28-300L, 100-400L and 70-200L and it doesn’t match up with any of them.

Says Peter
“For Canon fans, you might find this exciting. A photographer was using this lens. I assert that the black stripes of the focus and zoom rings are the wrong width and placement to be either the 70-200 or the 100-400; therefore I speculate this is a prototype of the long-rumored 100-400 II.”

What do you guys and gals think?

Click for Larger

Click for Larger

Source: Peter Norvig G+ thanks to John

cr

Patent: EF 100-400 f/4.5-5.6L IS

Patent: EF 100-400 f/4.5-5.6L IS

Another patent
This is probably the third separate patent I have seen for an EF 100-400 f/4.5-5.6L IS over the last 24 months. A zoom ring version does exist in the wild. We’re told the push/pull is finished and we’ll get a properly sealed 100-400. The cost will be north of $2500 USD and we could finally see it announced before the end of the year. Also appearing in the patent is a 70-300.

The breakdown below is Google translated

  • Patent Publication No. 2013-105053
    • Publication date 2013.5.30
    • Filing date 2011.11.15
  • Example 1
    • Zoom ratio 4.01
    • Focal length f = 72.48-135.49-290.86mm
    • Fno. 4.58-4.94-5.85
    • Half angle ω = 16.62-9.07-4.25 °
    • Image height Y = 21.64mm
    • 143.42-175.48-201.87mm overall length of the lens
    • BF 39.98mm
  • Example 3
    • Zoom ratio 3.75
    • Focal length f = 104.16-166.66-391.00mm
    • Fno. 4.60-5.20-5.80
    • Half angle ω = 11.73-7.40-3.17 °
    • Image height Y = 21.64mm
    • 221.48-252.31-300.68mm overall length of the lens
    • BF 70.65-87.69-113.37mm
  • Canon patent
    • I want to put in the first group the anomalous dispersion optical element
    • It is possible correction and lateral chromatic axial chromatic aberration, but spherical aberration of color and field curvature occurs
    • By optimizing the placement, the correction and field curvature, the spherical aberration of the color of g-line

Source: [EG]

cr