Canon patent for EF 24-105mm f/4 zoom lens

Canon has patented a new zoom lens in Japan. The new optic describes the EF 24-105mm f/4 standard zoom model designed for Canon DSLRs with full-frame image sensors.

This is a standard zoom lens with a 24-105mm focal range and f/4 maximum aperture for Canon EOS SLR cameras. Canon has the EF 24-105mm f/4 L IS USM with Image Stabilizer technology steadies camera shake at up to 3 stops. It also has ring-type USM system delivers silent but quick autofocus. 

The EF 24-105mm f/4L IS USM wide-angle to portrait-length telephoto lens from Canon is currently priced for $999 at camera stores.

Canon EF 24-105mm f/4 Lens Patent

Canon patent for EF 24-105mm f/4 zoom lens

The patent application refers to a possible new standard zoom lens with the same focal length and maximum aperture. It is not clear if the lens will be L-series. Canon’s flagship professional L-series combines the highest standards of precision optics and operability with dust and moisture resistant construction.

Here are the patent details translated by machine.

  • Patent Publication No. 2016-71283
    • Published 2016.5.9
    • Filing date 2014.10.1
  • Example
    • Zoom ratio 4.13
    • Focal length 24.70 32.04 102.11
    • F-number 4.10
    • Half angle of view (degrees) 41.22 34.03 11.96
    • Image height 21.64
    • The total lens length 148.96 152.86 207.64
    • BF 35.80 36.22 53.51