Canon rf 28 70 mm f2 l usm lens July 8, 2019 16 32 64 128 Canon rf 28 70mm f2 l usm lens review Canon rf 28 70mm f2 l usm camera lens Canon rf 28 70mm f2l usm lens used Canon 28-70 2.8 rf Canon rf 70-200 f2.8 l is usm Canon 28 70 Canon rf 28-70 review