New Dp2 Quattro (beta) samples~~~~ Locked

Started 5 months ago | Discussions thread
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Usee
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Re: One ugly JPEG encoder
In reply to Erik Magnuson, 5 months ago

Erik Magnuson wrote:

michaeli wrote:

http://digitalcamera.jp/html/HotNews/image/2014-06/17/sigma_dp2Q_beta/

The blue skies have nasty artifacts, particularly the night city-scape. The compression is very low (Q100 2:1 subsampling for SDIM0431) but compared to other cameras OOC, yuck.

Maybe it is noise, exaggerated by sharpening?

It isn't attractive, if it is not removable.

It has luckily no obvious regular pattern and no banding.

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I think a bit noise reduction, or a tad less sharpening could do...

...however it is something like ISO 100.

(depending whether and how to count the ISO setting and the exposure correction setting)

Now, I see the same thing in some of the SD1+50mm images recently linked -- but not those from Kendall. Were any of those images OOC? What I'm trying to ask is if the SPP JPEG encoder does the same thing. (Kendall has said he always exports TIFF from SPP so his JPEGs come from something else like Aperture)

You can find some SD1 RAWs and OOC JPG on imaging resource:

http://www.imaging-resource.com/PRODS/SD1/SD1THMB.HTM

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Erik

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