Comparison of Canon EF 300mm ƒ/2.8L IS II USM and Canon EF 300mm f/2.8L IS USM

Attribute	Canon EF 300mm f/2.8L IS USM ×	Canon EF 300mm ƒ/2.8L IS II USM ×
Magnification Ratio (x)	0.13	0.18
Filter Size (mm)	52	52
Focus Details	Inner focusing; full-time manual focus and USM	Inner focusing; Ultra-sonic Motor (USM), AF/PF/MF switch, Focus Preset, Range Limiter
Closest Focus (m)	2.5	2
Lens Construction	17 elements in 13 groups, including 1 flourite and 2 UD elements	16 elements in 12 groups, including 2 fluorite elements
Length (mm)	252	248
Focal Length (mm)	300.00	300.00
Diaphragm Blades Type	-	rounded
Brand	Canon	Canon
Image Circle	35mm	35mm
Name	Canon EF 300mm f/2.8L IS USM	Canon EF 300mm ƒ/2.8L IS II USM
Weight (g)	2550	2400
Type	Telephoto Prime	Telephoto Prime
Notes	Image Stabilization; Magnesium alloy lens barrels	Image Stabilization (4-stops); Included Accessories: lens hood and case
APS Equivalent	480mm	480mm
Aperture (f)	2.80 - 32.00	2.80 - 32.00
Diaphragm Blades	8	9
Diagonal Angle of View (degree)	8.30	8.30
Diameter (mm)	128	128