You want a "full frame" CMOS sensor? Try this for size!

Discussion in 'Digital SLR' started by Bruce, Aug 31, 2010.

  1. Bruce

    Bruce Guest

    Canon Develops 8" x 8" CMOS Image Sensor (202 x 205mm)!

    Canon Press Release:

    TOKYO, August 31, 2010—Canon Inc. announced today that it has
    successfully developed the world’s largest*1 CMOS image sensor, with a
    chip size measuring 202 x 205 mm. Because its expanded size enables
    greater light-gathering capability, the sensor is capable of capturing
    images in one one-hundredth the amount of light required by a
    professional-model digital SLR camera.

    At 202 x 205 mm, the newly developed CMOS sensor is among the largest
    chips that can be produced from a 12-inch (300 mm) wafer, and is
    approximately 40 times the size of Canon’s largest commercial CMOS

    In the past, enlarging the size of the sensor resulted in an increase
    in the amount of time required between the receiving and transmission
    of data signals, which posed a challenge to achieving high-speed
    readout. Canon, however, solved this problem through an innovative
    circuit design, making possible the realization of a massive
    video-compatible CMOS sensor. Additionally, by ensuring the cleanest
    of cleanroom environments during the production process, the sensor
    minimizes image imperfections and dust.

    Because the increased size of the new CMOS sensor allows more light to
    be gathered, it enables shooting in low-light environments. The sensor
    makes possible the image capture in one one-hundredth the amount of
    light required by a 35 mm full-frame CMOS sensor, facilitating the
    shooting of 60 frame-per-second video with a mere 0.3 lux of

    Potential applications for the new high-sensitivity CMOS sensor
    include the video recording of stars in the night sky and nocturnal
    animal behavior.

    Through the further development of distinctive CMOS image sensors,
    Canon will break new ground in the world of new image expression, in
    the area of still images as well as video.

    *1 As of August 27, 2010. Based on a Canon study.
    *2 The approximately 21.1 megapixel 35 mm full-frame CMOS sensor
    employed in the company’s EOS-1Ds Mark III and EOS 5D Mark II digital
    SLR cameras.
    *3 Approximately one-half the brightness of a moonlit night.
    Bruce, Aug 31, 2010
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  2. Must be low. 100 times more sensitive than a 24x36mm sensor,
    but only 40 times larger ... probably 8 to 10 MPix. :->

    Wolfgang Weisselberg, Sep 5, 2010
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  3. Kennedy McEwen, Sep 5, 2010
  4. Not with that pixel size.

    All telescopes these days are diffraction limited, at
    anything from f/1 to f/30 depending on use. Even at
    f/30 that would require about a 7 to 10 micron pixel.

    Doug McDonald
    Doug McDonald, Sep 6, 2010
  5. How do you figure that?
    The f/0.95 lens puts 16x the light per unit area on the focal plane that
    the f/3.8 lens does. So the FF pixels would have to be 16x the area of
    the MFT pixels to get the same per-pixel light collecting ability.
    Kennedy McEwen, Sep 6, 2010
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