This lens features aspherical lens elements including a glass-molded aspherical lens, one Super UD lens, and two UD lenses. Employing more special lens elements, the image quality has been significantly improved throughout the zoom range over the previous model. A 9-blade circular diaphragm aperture is also featured. Durability and shock resistance have also been improved by the redesigned lens mechanism. Furthermore, the lens body has been made significantly lighter.
|EF24-70mm f/2.8L USM||EF24-70mm f/2.8L II USM|
|No. of diaphragm blades||8||9|
|Closest focusing distance||0.38m (at Macro)||0.38m|
|Maximum magnification||0.29x (at 70mm)||0.21x (at 70mm)|
|Max. diameter x length||Φ83.2 x 123.5mm||Φ88.5 x 113.0mm|