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  • Digital Workflow and PP • Re: edit exif data December 15, 2017
    Picture information extractor //www.picmeta.com/products/picture-information-extractor.htmStatistics: Posted by Dr. Harout — Fri Dec 15, 2017 8:31 am
    Dr. Harout
  • Give it Your Best Shot • Re: Snow December 14, 2017
    .Hi ValeryD;Very beautiful scenes and very life-affirming indeed. That dog of yours is definitely a vivid life insurer ! He looks very warm too, with all the fur.Delightful. : )Thanks for sharing,YildizStatistics: Posted by aster — Thu Dec 14, 2017 6:03 pm
    aster
  • Give it Your Best Shot • Re: Snow December 14, 2017
    OK! More positive and life-affirming imagesStatistics: Posted by ValeryD — Thu Dec 14, 2017 4:42 pm
    ValeryD
  • Give it Your Best Shot • Re: Snow December 14, 2017
    ValeryD wrote:...Thank you! I hope only last picture drive you to a nostalgy direction. Yes, you could easily say that I'm more strongly drawn to the scene in last photo.. If only the more modern buildings in the background had not been there, the photo scene would have been a perfect nostalgia refering to a […]
    aster
  • Digital Workflow and PP • Re: edit exif data December 14, 2017
    the_hefay wrote:Does anyone one know of a good program for editing exif data in a raw file. The only thing I want to change is the lens info. My Minolta MD 70-210 is of course undetected and I have other setups like this also. I'd like to be able to fill the missing info in, […]
    ValeryD

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Sony CMOS sensor background revealed

There is a white paper by Sony Semiconductor on the imaging processing which I think is in the HX1, //www.sony.net/Products/SC-HP/cx_news/vol55/pdf/featuring55.pdf. I assume it is the IMX-032 CMOS sensor (//www.sony.net/Products/SC-HP/cx_news/vol55/np_imx032cqr.html) mated to a CXD4109AGG image processing chip. There seem to be some interesting techniques employed, multi-plane synthesis to combine several frames for low light and HDR capture.

With the IMX-032, it is interesting to note that the on-board programmable gain amplifier has a gain value of up to 18dB or a factor of 8, so if base ISO is 80, then maximum “analogue” ISO is 640. If we compare the IMX-032 versus Sony’s first column ADC CMOS chip (IMX-017), the IMX-32 has an 11.8% better photo-electron efficiency per unit area (2300e per 1.75 micron square pixel compared to 4500e per 2.5 micron square pixel). Might be a sign that Sony is improving the process and design used to make their CMOS chips.

The backside illuminated chip is called the IMX-061, //www.chipworks.com/uploadedFiles/Aliased_Pages/CMOS_ImageSensors_Spotlight/Chipworks%20-%20Sony%20IMX061%20EXR-0902-813.pdf
6MP and 1.75 micron pixels in ClearVID (45 degree) layout with a 1:6:1 RGB Bayer filter array, sacrificing colour resolution for spatial resolution.

The Nikon D90 chip is called the IMX-038 (not the IMX-021 as for the A700), so this suggests it has significant revisions compared to the IMX-021 (possibly linked to LiveView and HD Video?).

– Dr Daniel K. L. Oi

1 comment to Sony CMOS sensor background revealed

  • LEdgars

    CXD4109AGG seems very interesting sensor while more suitable for video. I would by (for reasonable price) a video camera with 6 Mpix (2000×3000) resolution and 30 (60)fps. It could provide a lot of space for cropping and digital stabilization in PC video editing soft. Of course 500GB CF 666x card then would be very useful.
    While with existing processors I don’t believe in image sticking concept. To make a panorama from three 12Mpix images in my computer (Dual Core, 2Gb RAM) takes ~30s or even more. The same for HDR images. I couldn’t imagine how it could be done in photo camera for less than second, but anyway it’s really interesting concept.