Canon EF-S 18-135mm f/3.5-5.6 IS STM

The front name plate around the front lens element will contain the lens model "CANON ZOOM LENS EF-S 18-135mm 1:3.5-5.6 IS STM". Check to make sure it is the STM version of the lens.

General:

• Focal Length: 18-135 mm
• Maximum Aperture: f/3.5-5.6
• Minimum Aperture: f/22-36
• Closest Focusing Distance: 0.39 m (1.3 ft)
• Maximum Magnification: 0.28 x (at 135 mm)

Construction:

• Lens Groups: 12
• Lens Elements: 16
• No. of Diaphragm Blades: 7 (circular aperture)

Physical:

• Lens Mount Type: Canon EF
• Filter Diameter: 67 mm
• Maximum Diameter x Length: 76.6 x 96 mm (3.1 x 3.8 in)
• Weight: 480 g (16.9 oz)

Accessories:

• Lens Cap: E-67 / E-67 II
• Lens Hood: EW-73B (sold separately)
• Case: LP1116 (sold separately)
• Magnification - Extension Tube EF12 II: 0.43 - 0.09
• Magnification - Extension Tube EF25 II: 0.61 - 0.21

Source: Canon Camera Museum

Instruction Manual

Wikipedia: Canon EF-S 18-135mm lens

Canon Camera Museum