Canon filed a patent for a EF-M 600mm f / 5.6 DO IS, a lens with diffractive optics for the EOS M system.
Canon patent for a superzoom lens for full-frame DSLRs, an EF 200-600mm f/4.5-5.6 lens.
As always with patents, you can’t be sure if the described product will hit the market. However, the optical formula in the patent reminds the Sigma 150-600mm F5-6.3 DG OS HSM lens, and given how well the latest Sigma lenses perform (given the price), I wouldn’t be suprised if Canon decides to strike back. I think such a lens would be welcome by the community.
I got some hints that Canon may implement a new sensor technology in their future pro-level DSLRs. The Canon EOS-1D X Mark II was also mentioned to possibly get a new sensor tech.
Thanks to reader Richard, we know that there is a slew of patents referring to column parallel sensors, a technology Sony is using on their EXMOR sensors. Quoting one of Canon’s patent applications, a column-parallel A/D converter is…:
a method for improving precision in analog-digital conversion […] of pixel signals. The A/D converter includes a first A/D converter (first processing unit) and a second A/D converter (second processing unit), and the first processing unit performs A/D conversion to generate higher-order bits of digital signals and then the second processing unit performs A/D conversion to generate lower-order bits. The first processing unit performs the first A/D conversion by comparing an analog signal to be converted and a reference voltage. The second processing unit starts charging a capacitor by a constant current source according to the result of the comparison performed by the first processing unit, and ends the charging in response to an edge of a clock signal (a rising edge) supplied immediately thereafter. Then, the second processing unit maintains the voltage for the capacitor and performs the second A/D conversion.
According to information passed over to me, Canon filed not less than seven (7) patents referring to column parallel sensor technology. A bit too much to believe Canon does not have some (big?) plans with such a sensor technology. Therefore, suggestions stating the Canon EOS-1D X may feature a new technology sensor may point in the right direction.
One of the patents is US2015/0341577. It refers to a column parallel sensor, and it seems to describe a method to get more dynamic range from shadows.
I am currently studying the other patents and will disclose them soon. Stay tuned…
Canon patent for a neat lens. An image-stabilised Canon 50mm f/3.5 IS maco lens for full-frame mirrorless cameras. And yes, there are rumors about a Canon full-frame mirrorless camera. The latest of those rumors says Canon’s full-frame mirrorless camera has been delayed because of mount-related issues.
Patent Publication No. 2015-215494
Canon patent for an EF-S 55-200mm f/4-6.3 STM lens. No mention of IS in the patent, that’s weird. For the time being there is an EF-M 55-200mm IS STM lens for the EOS M system.
Hard to say if this patent will ever hit the market. A similar telephoto lens for EF-S mount exists, the similar specced EF-S 55-250mm f/4-5.6 IS STM. Note that the optical formula in the Canon patent mentions an f/6.3 max aperture at telephoto lens. Could be another kit lens option, or just one of the many patents filed by Canon.
Canon patent for an ND (Neutral Density) filter with antireflection coating. This patent may lead to a high performing ND filter with minimal image quality degradation.
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