Grain from a Sony A7iii

Started 3 months ago | Questions thread
poipoipoi_2016 Contributing Member • Posts: 888
Re: Grain from a Sony A7iii
2

gezzamondo wrote:

i took some photos the other day using these settings

f/5.6 70mm 1/160sec ISO 200

I shot slightly under exposed due to shooting directly into the sunset and so i can recover the shadows in lightroom

but when i increased the shadows i noticed a lot of grain even though i only shot at ISO 200

Is it normal for it to be so grainy from the sony at those settings?

See examples below including histogram

Without EXIF, I can't know for sure, but ISO 200 + 4EV ~= ISO 6400 in terms of dynamic range. So yes.

https://www.dpreview.com/articles/3389926460/sony-a7-iii-dynamic-range-and-high-iso-improve-over-its-predecessor

Even on modern sensors, there's just limits to how much you can do without bracketing and converting dead black to something not-black takes effort. It's a multiple choice test where everyone mid-bubbles 3 Scantron questions. If it's out of 100, you can work with it. If everyone fails and suddenly the curve is out of 10...

And you took the left *tenth* of your histogram and made it into the left half.

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