It looks like Nikon is preparing to enter the mirrorless APS-C market and take on Sony’s a6000 series cameras. According to a breaking report from this morning, Nikon is planning to release the “Z50” APS-C mirrorless camera and two lightweight DX-format mirrorless lenses “soon.” The report, published by Nikon Rumors this morning, claims that the Nikon Z50 will feature a 20MP APS-C image sensor, 3-inch “pivoted” LCD, and the ability to shoot bursts up to 11fps. If accurate, it seems…