Nikon patents interchangeable sensor for mirrorless camera

Nikon filed a patent in Japan for interchangeable sensor solution in mirrorless cameras. According to the patent application, the interchangeable sensors will have different AF system, speed (fps) and pixel count in order to suite different shooting preferences:

AF Rate Image quality Remarks
Contrast AF Slow Good All pixels and therefore can be used for image output quality
Phase difference AF (center point, etc.) Fast Normal AF phase is very small because the pixel is used, less quality degradation
Phase difference AF (sensors, etc. Cross) Fast Bad AF phase for a number of pixels used, interpolation is required and can lead to lower quality

Just few weeks ago Nikon filed another patent for an interchangeable sensor with more connection details:

Recently Olympus filed a patent for a modular DSLR camera.

Nikon patent details:

  • Patent Publication: 2010-283651
  • Release date: December 16th, 2010
  • Filing date: May 6th, 2009

Juts a reminder that not all patent applications get implemented in real cameras.

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