DP Quattro: Sigma official announcement

Started Feb 10, 2014 | Discussions thread
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Kendall Helmstetter Gelner
Forum ProPosts: 19,160Gear list
Seems like much better high ISO support, less detail
In reply to Hardy Steiner, Feb 10, 2014

Hardy Steiner wrote:

So, that's a change: ratio 1:1:4 for the number of red, green, and blue megapixels, respectively.

So does this mean the sensor is more sensitive towards blue? What's the advantage here really in simple words?

To me it seems like the advantage would be much cleaner high ISO images.

Go into any Merrill raw file today, activate monochrome mode in SPP - flip the color wheel between red/green/blue.  Note how blue is usually cleaner.  With this new design, blue would be a bit noisier broken into four sensors, but there's a lot more of them - red & green would be just as clean.

What I'm not sure about yet is what this does for effective detail.  That's quite a lot fewer red/green photosites at work, even with the slightly increased pixel count.  Very interesting.  I thought I remembered there being a patent on this approach at one point so perhaps it's already been discussed.

 Kendall Helmstetter Gelner's gear list:Kendall Helmstetter Gelner's gear list
Sigma 70-200mm F2.8 EX DG OS HSM Sigma 8-16mm F4.5-5.6 DC HSM Sigma 24-70mm F2.8 EX DG HSM Sigma 50-500mm F4.5-6.3 DG OS HSM Sigma 85mm F1.4 EX DG HSM +4 more
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