If you're buying a second-hand DSLR camera (or you just want to check the sensor of your current camera), CNET suggests a neat trick to identify dust or dead pixels: point it at the sky and take a photo.
via Lifehacker http://ift.tt/1fYOe4u
If you're buying a second-hand DSLR camera (or you just want to check the sensor of your current camera), CNET suggests a neat trick to identify dust or dead pixels: point it at the sky and take a photo.
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