Interview with Sony’s CMOS Exmor R sensor developers

 Interview with Sonys CMOS Exmor R sensor developersUpdate: hit the comments section for a better translation.

This is the Google translation of the interview. The interesting part:

Q: As many users are interested, I would have to be equipped with a digital SLR camera. 2 the idea of sensitivity so you can take pictures which is twice less noise, I would simply think, including me, what are not going so easily.

A: Yes, because this type 1/2.4 small pixel size has been achieved the sensitivity of two-fold. Digital SLR camera I have I was much more pixel size. It is easy to collect the light from that case, two times the sensitivity of a sudden you're not.

Mu understand of the last sentence is that the Exmor R sensor will not be so efficient in a DSLR. Anybody got a better translation?

Related posts:

  1. Sony creates world’s first 16.41MP Exmor R back-illuminated CMOS sensor for mobile phones
  2. Next Sony DSLR: with the new Exmor R CMOS Sensor?
  3. Sony develops next-generation back-illuminated CMOS sensor with RGBW coding and HDR movie function, Canon files a patent for a large BSI sensor
  4. The next generation Sony Exmor sensor
  5. Sony Exmor R sensor now in digital cameras

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9 Comments

  1. Posted September 18, 2009 at 8:29 pm | Permalink

    Better translation from the forums at dpreview.com

    http://tiny.cc/1Nuok

    Close to the bottom, reporter question about using the Exmor R sensor in the DSLR:

    (taken from HK forum http://www.dchome.net/viewthread.php?tid=757037&extra=page%3D1)

    Reporter Question:

    Many users want to have a DSLR using Exmor R sensor. To get two times of sensitive and reduce the amount of noise.
    However, it is not such simple, right?

    Sony Answer:

    Yes, because the sensor used in the Cyber shot is small, 1/2.4 inch, so that it can increase 2 times of sensitivity by using Exmor R sensor.

    However, in DSLR, the size of the sensor is much larger, so that it is much easy to receive light under this size.

    Therefore, using Exmor R will not able to increase the sensitivity to light by

  2. Posted September 18, 2009 at 8:30 pm | Permalink

    …2 times

    Sorry that bit didn’t make my copy-paste

    • WoutK89
      Posted September 19, 2009 at 3:28 am | Permalink

      So if I am reading right, these super sensor have no advantage whatsoever above a certain size? At least Sony is now able to create very small camera’s with better low light capabilities, or isnt that an advantage :-P

      • dyna
        Posted September 19, 2009 at 10:57 am | Permalink

        Exactly. As the sensor gets larger, the law of diminishing returns on Exmor R becomes apparent. It’s not that it wouldn’t be an advantage, it’s that it would be a minimal advantage. Also people should note that in order to put the new Exmor R sensors in the new Sony product, new lenses have been developed for every one of these cameras and camcorders. This is indicative of another issue: should Exmor R ever truly become viable for DSLR, it would likely require a completely new line of G type lenses to pull it off correctly.

        So the other advantage of dropping a backlit sensor into the DSC and Handycam systems is that it’s much cheaper to pay for the R&D and components that go into a lens of THAT size vs. one that an APS-C or full frame sensor would require.

  3. Mike again
    Posted September 19, 2009 at 2:01 pm | Permalink

    Sorry, but whatever they say it’s pure BS, apologize my language but it’s simple physics it will of course increase the sensitivity also for larger sensors, but of course the industry always want to spare a few cards up their sleeves and release it in small portion so theirs always a milk cow, all in balance with how the market develops.

    But OK, let say the new sensor technology “doesn’t work” on bigger sensor sizes, the they can always increase the pixel rate on a big sensor so the pixel density is kept to a more favourable resembling of the smaller pocket camera sensors, period!

    The noise per pixel goes up BUT the noise reduction algorithms have more pixels for a given area so it can reduce the noise in the DSP.

    It all boild down we can get very good noise performance on ANY sensor size as long as on pixel level each pixel is kept at the more favourable (smaller according to Sony) size.

    • Abc
      Posted September 19, 2009 at 5:55 pm | Permalink

      Which means, current APS-C sensors must be at around 100MP (hence the same pixel density as P&S sensors) to be applicable for Exmor-R technology. Well at least I know future 100MP cameras will have quite decent noise up to ISO 800 :D

    • El Aura
      Posted September 19, 2009 at 7:00 pm | Permalink

      Mike again, do you actually know what Exmor is about? It is about moving the wiring of the sensor onto the backside of sensor (with the front being light-receiving side). The smaller the actual pixels (and the smaller the sensor, the smaller the pixels if the pixel count is roughly the same) the larger the percentage of the sensor that is shaded by this wiring (in a conventional sensor), and thus the larger the gain of moving it to the non-light-receiving side.
      For larger sensors the wiring simply does not shade a significant portion of the individual sensel, thus moving it the other side, out of the way, does not improve things much.
      But I guess, why let basic geometry and physics come into the way of a nice conspiracy theory? And those people discovering the conspiracy are naturally the really smart people.
      http://www.dpreview.com/news/0908/09080601sonycmos.asp

      • dyna
        Posted September 20, 2009 at 6:53 pm | Permalink

        Thank you. Rationality is always the white light amongst the red light district of chaos. lol

  4. Mike again
    Posted September 23, 2009 at 7:39 pm | Permalink

    El Aura, thanks for the link, I stand corrected, the explanation over at dpr is clear!