Identification
The lens will be marked "CANON ZOOM LENS EF-S 18-55mm 1:3.5-5.6 IS II" around the front lens element.
Technical Specifications
General:
- Focal Length: 18-55 mm
 - Maximum Aperture: f/3.5-5.6
 - Minimum Aperture: f/22-36
 - Closest Focusing Distance: 0.25 m (9.8 in)
 - Maximum Magnification: 0.34 x
 - Image Size: 15.1 x 22.7 mm
 
Construction:
- Lens Groups: 9
 - Lens Elements: 11
 - No. of Diaphragm Blades: 6 (circular aperture)
 
Physical:
- Lens Mount Type: Canon EF-S
 - Filter Diameter: 58 mm
 - Maximum Diameter x Length: 68.5 x 84.5 mm (2.7 x 3.33 in)
 - Weight: 200 g (7.1 oz)
 
Accessories:
- Lens Cap: E-58 / E-58 II
 - Lens Hood: EW-60C (sold separately)
 - Case: LP814 (sold separately)
 - Magnification - Extension Tube EF12 II: 0.64 - 0.23
 - Magnification - Extension Tube EF25 II: 1.00 - 0.51
 
Source: Canon Camera Museum