It's when focused points of light, supposed to fall only in one pixel spill over into another pixel because of diffraction. So instead of getting the image crisp, it slightly softens the image. I would say that this is usually not quite noticeable...
It's when focused points of light, supposed to fall only in one pixel spill over into another pixel because of diffraction. So instead of getting the image crisp, it slightly softens the image. I would say that this is usually not quite noticeable...