This versatile lens is lightweight (just 10 oz.) and compact (only 3.5 inches long). It uses an exclusive 4-group zoom system and floating element to

This versatile lens is lightweight (just 10 oz.) and compact (only 3.5 inches long). It uses an exclusive 4-group zoom system and floating element to prevent flare in difficult lighting situations and virtually eliminate astigmatism throughout the entire zoom range. What you get is improved image quality and some very impressive shots.