Canon Patent For Super Fast Auto-Focus Using 2 Motors

Egami has discovered a new patent filed by Canon. The new patent describes a dual motor autofocus for STM lenses which could be the next step in STM lens technology.

The patent image shows a leaf shutter mechanism. The AF in the patent is driven by 2 motors, the main STM and an auxiliary DCM motor. EF Leaf shutter lens that will allow a true 1/1000s are on the drawing board.

See the patent details below.

Canon Patent For Super Fast Auto-Focus Using 2 Motors

canon-fast-auto-focus-patent

 

  • Patent Publication No. 2014-164106
    • Published Date 2014.9.8
    • Filing date 2013.2.25
  • Example 1
    • Moving the aperture one two motors
    • Main motor STM
    • Auxiliary motor DCM
    • And then rotate the first auxiliary motor, to assist the acceleration of the main motor

via Egami

Macphun's all-in-one photo editor Luminar 2018 is out now and available for just $69 for new users, with big discounts for upgrading users. We rated Luminar as "Highly Recommended".

Use coupon code "CAMERANEWS" to save another $10 on Luminar. Download Luminar 2018