John Cornwall, via email

NPhoto - - Nikopedia -

Why are tiny white crosses ap­pear­ing on im­ages from my D3x?

Matt says… ‘Hot pix­els’ oc­cur when a pixel on the sen­sor of your Nikon re­ceives ex­cess charge. This af­flicts most cam­eras af­ter an amount of time. You can ig­nore it, as the size of the hot pix­els usu­ally makes them in­vis­i­ble when the im­age is viewed at 100 per cent, or set up a Pho­to­shop ac­tion to clone the pixel out.

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