Canon Aperture Ring Patent

Canon has applied for an Aperture Ring Patent and bringing back the physical ring on the lenses.

The new lens design separates aperture adjustments between movie capture and still capture.  When capturing movies, aperture changes are made via the lens ring.  When the mirror is down and capturing still images, aperture changes are made via the camera body. 

There are also numerous other features that could be built into these lenses (e.g., programmed/remote focus pulls, smoother/slower AF adjustments, etc.); however, this patent application was limited to a specific feature-set tied to this new aperture ring.

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