GoPro’s HERO4 Session Targeted by Polaroid for Patent Infringement


C&A Marketing, which licenses Polaroid’s brand name, is suing GoPro for patent infringement of its Polaroid Cube line of action cameras. C&A claims that the GoPro HERO4 Session is a ripoff of the Cube, which was introduced to the market several months before the HERO4 Session.

If you were familiar with the Polaroid Cube prior to the HERO4 Session launch, you couldn’t help but notice the striking similarity of the two.

I said as much in my coverage of the HERO4 Session announcement coverage: [Read more…]


Canon Global Shutter Patent Application


One of the major criticisms of DSLRs, and specifically Canon DSLRs, is the use of a rolling shutter that produces motion artifacts. This rolling shutter effect is very prevalent in video with Canon DSLRs thanks to the readout method of the CMOS image sensors.

It has certainly improved with recent models (the 5D Mark II was a mess and the 5D Mark III is much better) but Canon is continuing to refine the process and reveals some of the methods it is seeking to use in a pair of recent patent applications. [Read more…]

Canon EF 35mm f/2 IS II USM Lens Patent

Canon EF 35mm f/2 IS II USM Lens Patent Diagram

Canon EF 35mm f/2 IS II USM Lens Patent Diagram

In a recently published patent application, Canon details a new 35mm f/2 lens. You can see the optical formula in the above diagram.

The lens construction is 104.5mm long, so it is quite a bit longer than the current model at 62.6mm. The patent also covers a revised image stabilizing system to the current EF 35mm f/2 IS USM.

It was filed on March 31, 2015. You can read it for yourself below. As always, let me know if anything else jumps out. [Read more…]

New Canon EF 50mm f/1.4 & 35mm f/1.4 Lenses Revealed in Patent

Canon EF 50mm f/1.4 Patent Diagram

Canon EF 50mm f/1.4 Patent Diagram

A recently published patent application from Canon reveals the development of new 50mm f/1.4 and 35mm f/1.4 lenses, which use similar optical formulas. We know the new EF 35mm f/1.4L II USM lens is due any day now but a 50mm f/1.4 lens hasn’t really been on the radar even though the current EF 50mm f/1.4 USM lens is getting quite old. [Read more…]