A&R Professional Replacement focusing screen For Nikon D3100 same Quality as it comes With Body 1G950-124 * Focusing screen for Nikon D3100 repair part same as it comes with Body. * Replacement Focusing screen for Nikon D3100. * This is an interchangeable focusing screen compatible with the Nikon D3100 camera. This is the same one as built into the camera. * Reliable Service, Same Day Shipping