Comparison of Canon EF-S 18-135mm ƒ/3.5-5.6 IS and Canon EF-S 18-135mm f/3.5-5.6 IS USM

Attribute	Canon EF-S 18-135mm f/3.5-5.6 IS USM ×	Canon EF-S 18-135mm ƒ/3.5-5.6 IS ×
Aperture (f)	3.50 - 36.00	3.50 - 36.00
Filter Size (mm)	67	67
Notes	Compatible with PZ-E Power Zoom Adapter; Image Stabilization up to 4-stops; EW-73D lens hood included.	EF-S lens mount, exclusively for bodies with APS-C sensors. Image Stabilization up to 4-stops. Optional lens hood.
Closest Focus (m)	0.39	0.39
Magnification Ratio (x)	0.21	0.21
Zoom System	Rotary	Rotary
Type	Standard Zoom	Standard Zoom
APS Equivalent	29 - 216mm	29 - 216mm
Diaphragm Blades	7	7
Image Circle	APS-C	APS-C
Focal Length (mm)	18.00 - 135.00	18.00 - 135.00
Brand	Canon	Canon
Name	Canon EF-S 18-135mm f/3.5-5.6 IS USM	Canon EF-S 18-135mm ƒ/3.5-5.6 IS
Weight (g)	515	480
Diaphragm Blades Type	rounded	rounded
Lens Construction	16 elements in 12 groups	16 elements in 12 groups, including UD and aspherical elements
Diagonal Angle of View (degree)	11.30 - 74.20	11.30 - 74.20
Length (mm)	96	96
Diameter (mm)	77.4	76.6
Focus Details	Inner focusing; Nano USM AF with full-time manual focus	Inner focusing; AF/MF switch with STM motor