Review: Olympus 12-45mm f4 PRO (F8 and Be There!)

You may be wondering why I'm channeling a WeeGee quote around the Olympus 12-45mm f4 PRO review. The reason why is because of the depth of field. Wide-open at f4, this lens has the equivalent depth of field of a full-frame lens at f8. However, it has the light-gathering abilities of f4. So with that said, a photographer can go around and shoot at an f8 equivalent and get lots of great moments perfectly in focus. Add to that this lens' weather sealing, small size, and performance and you've got a...