Site Sponsors
Results 1 to 8 of 8

Thread: New Sony Sensor

  1. #1
    Sr. Administrator Jack's Avatar
    Join Date
    Oct 2007
    Location
    Los Altos, CA
    Posts
    10,486
    Post Thanks / Like
    Images
    1031

    New Sony Sensor

    Interesting write up over at the Online Photographer for the new Sony chip --- should find its way into a Nikon D3X this year

    http://theonlinephotographer.typepad...log_index.html
    Jack
    home: www.getdpi.com

    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

  2. #2
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: New Sony Sensor

    Nikon has really been on the move lately. Great for the industry at large that is for sure.

    Now this one maybe worth waiting for D3x
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  3. #3
    Sr. Administrator Jack's Avatar
    Join Date
    Oct 2007
    Location
    Los Altos, CA
    Posts
    10,486
    Post Thanks / Like
    Images
    1031

    Re: New Sony Sensor

    Quote Originally Posted by Guy Mancuso View Post

    Now this one maybe worth waiting for D3x
    Yup. Especially now that they added that 24 TS lens
    Jack
    home: www.getdpi.com

    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

  4. #4
    Senior Member
    Join Date
    Nov 2007
    Posts
    1,513
    Post Thanks / Like

    Re: New Sony Sensor

    Do either of you guys think the 12-bit design on this new Sony sensor might slow its sale/use compared to 14-bit on the D3 and on the Canon sensors? I know there is a lot of theoretical discussion on this, but just curious if Sony is coming in a half-step behind on this or not.

    Jack, I agree that if/when Nikon hits with a D3X(?) at FF and a bunch of pixels, their new T-S lenses are going to grab some more attention.

    LJ

  5. #5
    Sr. Administrator Jack's Avatar
    Join Date
    Oct 2007
    Location
    Los Altos, CA
    Posts
    10,486
    Post Thanks / Like
    Images
    1031

    Re: New Sony Sensor

    The 12/14 bit debate is an interesting one. Personally, I believe that previous generation "12-bit" sensors were really more like 10 anyway, with perhaps the green channel maybe almost making 12. I suspect if we compared real 36-bit (3x 2^12) color to real 42-bit (3x 2^14) color, I doubt many of us would notice much visible difference.

    I mean we're talking 68 Billion colors versus 4 Trillion, but the human eye can only distinguish about 100 Billion distinct shades --- and that's inside the total visual spectrum. Factor in that the capture space of most cameras is smaller than the total visible spectrum by nearly half, then dividing the lesser colors present by 68 Billion gets us to the levels where 12-bit is getting pretty darn close to the absolute limit of human vision inside any likely capture space...
    Jack
    home: www.getdpi.com

    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

  6. #6
    Senior Member
    Join Date
    Nov 2007
    Posts
    1,513
    Post Thanks / Like

    Re: New Sony Sensor

    Thanks, Jack. At this point, I really do not have enough frame of reference or examples to know. I was just thinking about other very large MP sensors, like those on MFDBs, where they are 14 or 16-bit to get the most color depth from the capture. It does mean moving a lot more bits, and 24MP at 6fps speeds, as this Sony sensor is being advertised as having is an awful lot of bits already ;-) My personal preferences would be for getting as much info as possible at capture. If there really is not that much noticeable difference between 12-bit and 14 or 16-bit, it may be moot, but it is hard to know what you are missing when you do not have it to begin with ;-)

    LJ

  7. #7
    Senior Member Lars's Avatar
    Join Date
    Nov 2007
    Location
    Sunnyvale, California
    Posts
    1,811
    Post Thanks / Like
    Images
    19

    Re: New Sony Sensor

    D3x rumors have been around for years, perhaps we'll finally see something this year.

    What 12 bits translates to in a final image depends on several factors

    - The inherent noise in the analog section of the chip
    - The camera manufacturer's decision on where to place full exposure
    - The interpolation algorithm of the Bayer interpolator in the raw converter
    - Exposure and curve adjustments after conversion to an image raster.

    Also keep in mind that this is linear bits - 14 stops dynamic range fits into an 8-bit gamma 2.2 space, it's not like the 8-bit limit clips half the information ( though some precision is lost).

    I think the only thing that can safely be said is:

    Everything else being equal, higher bit depth is less limiting on image quality.

    However, everything else is never exactly the same, which is why we wait for the reviews to see the actual performance once the chip is in a camera. Until then, a theoretical discussion around chit bit depth is just theoretical.

    There is a parallel to the same discussion for scanners - however that is a different situation: scanner bit depth is most important when scanning negs, as negs only use a limited center section of the dynamic range. This limited range is then inversed and expanded, and high bit depth will mean smoother tonality. Since most of us don't use our DSLR's to shoot negs on a light table, that consideration is hardly applicable to cameras.

  8. #8
    Sr. Administrator Jack's Avatar
    Join Date
    Oct 2007
    Location
    Los Altos, CA
    Posts
    10,486
    Post Thanks / Like
    Images
    1031

    Re: New Sony Sensor

    Quote Originally Posted by Lars Vinberg View Post
    Since most of us don't use our DSLR's to shoot negs on a light table, that consideration is hardly applicable to cameras.
    Lars, next time you're in town, I need to introduce you to Jan Brittenson
    Jack
    home: www.getdpi.com

    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •