Fuji S5 14bit A/D

Discussion in 'Fuji' started by RichA, Sep 26, 2006.

  1. RichA

    RichA Guest

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  2. darrell.larose, Sep 29, 2006
    #2
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  3. RichA

    G.T. Guest

    I finally looked at the K10D preview and I see it's got a choice between
    PEF and DNG. Very nice. Hopefully the other manufacturers will follow
    suit.

    Greg
     
    G.T., Sep 29, 2006
    #3
  4. RichA

    Alan Browne Guest

    Alan Browne, Sep 29, 2006
    #4
  5. RichA

    RichA Guest

    Someone suggested it could have been Nikon forcing their hand owing to
    their use of the D200 body. Otherwise, it could be Fuji who like
    Sigma have claimed higher resolution than traditional CCD/CMOS sensors
    for a given pixel count. I'm sure it will be a nice camera, but I
    wonder why Fuji is avoiding the entry-level? Could it be they've
    surmised the mindset of the entry-level buyer is solely geared toward
    more megapixels as a sole determinant of quality?
     
    RichA, Sep 30, 2006
    #5
  6. Odd the new Pentax K10D has a 22 bit ADC....

    I don't think that 22 Bit makes much sense, as the sensor noise limits
    the accuracy to much less than 1:2**22.

    OTOH the report states that JPEG conversion limits the accuracy to 8
    Bit. That is not true as JPEG format is stored gamma corrected and this
    increases the accuracy by 2 to 4 bits in the dark areas. So 12 to 14x
    Bits seems like a good compromise, offering enough headroom.

    -Michael
     
    Michael Schnell, Oct 2, 2006
    #6
  7. RichA

    acl Guest

    I think it's more relevant that if the full well capacity is, say, 80000
    electrons, then 17 bits are enough to count every single one. Not many
    DSLR sensor will have a full well capacity over that. And in terms of
    accuracy, using more bits in the AD converter will not offer any advantage.

    There might be advantage to more bits when doing manipulations on the
    data, but one could still use a 17 bit converter and then switch to eg
    22 bit representations (there might be rounding errors, though I have no
    clue as to the preactical aspects of this).
     
    acl, Oct 2, 2006
    #7
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