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Canon has redesigned the camera's mirror mechanism to reduce the amount of vibration it causes when it flips up. Using a similar system to the one employed in the EOS 7D II, it is motor, rather than spring driven. This means its upward motion can be decelerated as it approaches the top of its travel, rather than smacking against a stop at full speed. We're fairly convinced that this new design helps maintain image sharpness despite the high resolution of the camera, especially in Silent Shooting mode.

Canon motor-driven mirror mechanism Illustration of the motor-driven mirror mechanism in the Canon EOS 7D Mark III Video courtesy of and copyright Canon USA. Visit http://www.dpreview.com

Small sensor
Most imaging systems, such as those found in digital cameras, use a lens to focus a scene on a sensor studded with millions of tiny sensors. More sensors means more detail is captured and, generally, produces a higher resolution image.
The imaging system developed by graduate student John Hunt and colleagues at Duke University in North Carolina has no lens and instead combines a metamaterial mask or aperture and complicated mathematics to generate an image of a scene.
The aperture is used to focus different wavelengths of light in different parts of a scene onto a detector. The different frequencies in the scene are sampled sequentially.
This sampling helped to work out the distribution and mix of light wavelengths and their relative intensities found in a scene, said Mr Hunt.

Lens-less camera emerges from metamaterials work - BBC News Cheap sensors that help cars avoid collisions could emerge from US research into a lens-less imaging system.

Canon turbo boosts the pixel race with 250-million-pixel APS-H sensor If you thought the pixel race was something that ended a few years ago think again. Canon has announced that its R&D team has developed a CMOS sensor of a similar size to that used in the EOS 1D Mark IV which houses 250 megapixels. Read more

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