Testing new Sigms 50-500 mm lens. On the Olympus 4/3's system there is a 2X facter for 35mm equivelience. Canon has 1.6 Xfactor and Nikon 1.5Xfactor. This is one of the reasons I have choisen Olympus for my wildllife photography camera. Color rendentions and onerall look of finished product are other reasons. These first images hopefully are less than what I will be able to get from this lens after I learn it's abilities.