Canon 70-200 f2.8 L IS II review & comparison to 70-200 f4 L IS

The 70-200 lens is a staple in most pro photographer’s diet.  The photographic possibilities with that focal are wide ranging and Canon has a 70-200 to suit almost everyone’s needs, 4 different versions in fact.  The previous image stabilized version was brought out in 2001 and quickly became the new standard for such lenses.  In 2010 Canon introduced the new MKII version of the lens featuring an improved 4-stop image stabilization and theoretically improved image quality.  How does it stack up to the previous version and how does it compare to the 70-200 f4 L IS ?  Read on to