The Tamron 18-200mm f/3.5-6.3 XR Di-II Zoom Lens for Canon is a 15x high power zoom lens designed exclusively for digital SLR cameras using the more compact (APS-C) digital size image sensors. The focal length of this lens is equivalent to approx. 28-419mm in 35mm format. Designed as an all-in-one lens, it will meet almost all photographic opportunities without changing lenses.Focal Length: 18 - 200 mmAperture: f/3.5 - 6.3 (Maximum) / f/22 - 40 (Minimum)Camera M