EF 70-300mm f/4.5-5.6 DO IS USM
One of Canon's answers to working pros who asked for a longer tele zoom lens, with true professional build quality and excellent optical performance, but in a more portable package than traditional 70–200mm f/2.8s or 100–400mm lenses. Diffractive Optics technology gives the critical user a zoom with 300mm capability, yet that collapses to a very manageable size. And, it still preserves durable, smooth pro-level mechanical quality, with strong metal barrel design, and Canon's high-end ring-type USM for fast, silent AF.
- Small and inconspicuous design, yet with full 300mm capability at max. zoom setting – a great travel lens, and excellent for long-range coverage of outdoor events or subjects that can't be easily approached, including wildlife
- Delightful hand-held operation and handling, aided by strong Image Stabilization system
- Multi-layer Diffractive Optics design not only shortens overall lens length, but provides almost perfect cancellation of chromatic aberrations (color fringing)
- Used with small-sensor digital SLRs with 1.6x "crop factor", it's equivalent to a 480mm lens at longest zoom setting