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2023-04-25

Sony F35: Digital cinema camera with non-square, non-Bayer pixels (2008)

The Sony F35 is Sony's first digital Super 35 (23.6x13.3 mm, 16:9) video/cinematography camera (2008).



Its special feature is that it uses non-Bayer filters for the pixels of  the CCD sensor. Moreover, the pixels are not square (to maintain the 16:9 aspect ratio of the output video).



The true sensor resolution is 5760 (1920x3) x 2160 (1080x2) pixels (about 12MP total). A group of 6 (3x2) pixels gives one pixel output. Therefore, the video resolution is 1920x1080 (FullHD).

The six sensor pixels (generating one output pixel) contain two sets of three R, G, B pixels. This makes it possible to avoid Bayer interpolation. Full RGB color reconstruction is straightforward.

This was an attempt to compete with 3CCD systems, which use a complex optical system with image decomposition on three monochrome (R, G, B) sensors, but the flange focal distance is too large to use some cinema lenses and the optical quality is not good enough.

This idea of the Sony F35 sensor was not continued.



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