D7100 superb camera gives some great results.

Started Mar 26, 2013 | Discussions thread
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xpatUSA Senior Member • Posts: 8,302
Re: Grainy background again!

Shunda77 wrote:

What is the deal with the mottled look to the background, particularly on the owl shots? This seems to be popping up quite regularly at relatively low ISO on several pics posted on this forum. Do you see this as normal? have you noticed anything like this in other shots at low ISO?

It's noise, probably photon 'shot' noise because the background is dark. Mottled because the sensor is a Bayer CFA type. Sometimes sharpening makes it more visible.

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