Center - 50mm1.8 at f1.8Center - 50mm1.8 at f2.2Center - 50mm1.8 at f2.8Center - 50mm1.8 at f4Center - 50mm1.8 at f5.6Center - 50mm1.8 at f8Upper left Corner -50mm1.8 at f1.8Upper left Corner -50mm1.8 at f2.2Upper left Corner -50mm1.8 at f2.8Upper left Corner -50mm1.8 at f4Upper left Corner -50mm1.8 at f5.6Upper left Corner -50mm1.8 at f8