As a professional photographer, I am very concerned about the set of lenses I own. I not only want the best quality lenses but the right lenses to cover my photographic needs. I need lenses that will work in a variety of situations. Because of weight and size limitations associated with travel, not to mention convenience, I don’t want to haul tons of lenses around. So, over the years, I have purchased and sold many lenses and settled on what I feel is the ideal set of lenses for my situation.