Canon Patent For RF 90mm f/2.8L IS Macro Lens (EOS R System)

Hi Lows Note spotted a rather interesting Canon patent application (2017-108266).

The patent literature describes a 90mm f/2.8L IS macro lens for the Canon EOS R system. Two optical formulas are discussed in the patent literature.

Specification and lens arrangement of embodiment 1

• Focal length: 97.00mm
• F number: 2.92
• Half angle of view: 12.57
• Image height: 21.64mm
• Lens length: 115.12mm
• Back focus: 20.01mm

Specification and lens arrangement of embodiment 3

• Focal length: 86.00mm
• F number: 2.87
• Half angle of view: 14.12
• Image height: 21.64mm
• Lens length: 115.07mm
• Back focus: 15.93mm

Well, this is a patent application for a lens that may indeed hit the market (most patent applications never become a real product).

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production in the next few years are these:

• Patent application describing how to improve burst rate by compressing raw files
• Patent application describing a new way to review photos from a sequential shot
• Patent application that describes technology to improve wireless communication while reducing power consumption
• Patent application to spot and reduce moire artefacts in image data
• Patent application for weather sealed lens adapter
• Patent application for AI powered predictive camera control system
• Patent application for 18-55mm kit lens with LCD display
• Patent application to reduce noise in image files