The new Canon EF 24-105mm f/3.5-5.6 IS STM is the first Canon full frame EF lens to feature a stepping motor (STM) for virtually silent autofocus operation during video captureCanon EF 24-105mm f/3.5-5.6 IS STM Specification: Variable maximum aperture and 4-stop image stabilisationA standard zoom is a great all-in-one solution for professional or enthusiast photographers alike, giving them plenty of shooting options without having to change lens. The new Canon EF 24-105mm f/3.5-5.6 IS STM offers exactly that, and with its $599 price tag it’s a cheaper alternative for enthusiasts than the current $1,149 ‘pro grade’ 24-105mm