"This lens covers almost everything you could need for shooting DX photos in daylight. Carry this and a low-light lens, and you're set, nothing else necessary in the bag." bhphotovideo.com
"If you want the best possible lens at this focal length then this is the best money can buy. I think from a value perspective this lens with the various tele-converters give you the most coverage and value for the money. I do also shoot a 70-200mm f/2.8 with and without the tele-converters with very good results, however the sharpness with this lens as expected is beyond comparison." bhphotovideo.com