canon ef 24-70mm f2.8l usm vs ef 24-105mm f4l is usm

canon 24-70 2.8 l canon ef 24-70mm f2.8l usm standard zoom lens canon ef 24-70mm f2.8l usm canon ef 24-70mm f2.8l usm lens canon ef 24-70mm f2.8l usm standar...