With the newly developed triple-layered DO lens and a glass-mold (GMo) aspherical lens, this telephoto zoom lens achieves high imaging quality comparable with L lenses in an ultracompact size, approximately two-thirds that of conventional lenses*1. The DO lens has a three-layer structure suited to zoom optics to resolve the problem of unwanted diffraction flares generated when zooming. While realizing a truly compact size, it compensates for chromatic and spherical aberration and offers the high-resolution and high-contrast imaging performance of an L lens. This lens also maximizes operability with an image stabilization mechanism with approximately 3 shutter speed*2 correction capability, a zoom ring lock that maintains the lens at its shortest length when carried, and a full-time manual focus system. This lens employs environmentally friendly lead-free glass, and with an optimized lens coating and optical design, it minimizes flare and ghosts, which often occur with digital cameras.
*1 Compared with the EF75-300mm f/4-5.6 IS USM, which has approximately the same focal length and f number value.
*2 Based on a shutter speed of 1/focal length seconds, said to be the limit for hand-held photography without image stabilization.
- Filter size: 58mm
- Max aperture: f/4.5 - 5.6
- With ring USM motor and IS