I purchased on recommendation of a knowledgeable friend when a rare opportunity developed. Weight and bulk was a consideration, and I wanted a better camera & lens to capture the events. This lens did not disappoint me at all! Within its focal range, it provided better images and greater versatility than I expected from a single lens. I'm very pleased, and I recommend it to others. I've since purchased another lens for this system to expand its capabilities, and I intend to purchase others.