Canon filed a patent for an EF 10mm f/2.8L USM lens. The interesting fact: this is not a fish-eye lens!
Canon filed patent to increase dynamic range by using a Neutral Density (ND) filter on half of the measured field. This is a pretty complex one and I am not 100% sure I got it right (any help welcome).
The described system works by getting different degrees of light intensity from the Dual Pixel auto-focus (DPAF) points (i.e. split pixels) on the sensor. The patent says the ND filter is placed on 50% of the measured field: different amounts of light hit the split AF pixels needed for DPAF (this means both of the split pixels are used to measure the DR). The result is an output that’s able to render an increased dynamic range to the sensor, and a easier to measure differential signal from the DPAF points. It is not as easy as I am trying to put it :-) To learn more about Canon’s Dual Pixel Auto-Focus technology have a look here.
Canon filed a patent for a camera system with translucent mirror and electronic viewfinder (EVF). Looks like a patent for a technology similar to Sony’s translucent mirror. This is not the first time Canon files a patent referring to a translucent mirror (1 | 2).
What’s coming next from Canon’s labs?
[via Egami]
Egami (translated) spotted a patent filed by Canon for a tilt-shift lens with built-in image stabilisation.
If this patent hits the market, Canon would produce the world’s first image stabilised Tilt-Shift lens.
Company Intellectual Ventures accused Canon of patent infringement. Canon lost. Two image sensor patents are concerned: US6,221,686 “Method of making a semiconductor image sensor” and US6,023,081 “Semiconductor image sensor.”
Delaware Intellectual Property Litigation published a document with the motivations (see pages 11-19).
[via Image Sensors World]By Memorandum Opinion entered by The Honorable Sue L. Robinson in Intellectual Ventures I, LLC, et al. v. Canon Inc., et al., Civil Action No. 11-792-SLR (D.Del., May 18, 2015), the Court granted plaintiff’s alternative motion for a new trial regarding infringement of U.S. Patent Numbers 6,121,960 (“the ‘960 patent”) and 5,754,348 (“the ‘348 patent”) after concluding that defense counsel in his closing argument improperly played the role of expert witness by inferring from factual testimony that the accused devices did not meet the claim limitations arguments. The court found such argument to be contrary to a pre-trial agreement that defendant would not present any evidence of non-infringement, including evidence of a lack of a subjective intent to infringe, particularly given that the Court previously barred certain testimony from plaintiff’s witnesses on the topic during the trial.
Last week I got a rumor I didn’t take seriously. The rumor suggested that Canon is working on a new version of the highly popular [shoplink 246]EF 16-35mm f/2.8L II USM[/shoplink] lens. Well. I think I was wrong in not trusting the source. The EF 16-35mm f/2.8L II USM was released in 2007, so a replacement is not out of the realm of possibilities. Given the patent, I rate the rumour CW3.
Egami (translated) spotted a patent that appears to support the rumour of a EF 16-35mm f/2.8 Mark III lens.
About our rumour rating:
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