EF 28-80mm f3.5-5.6 USM
The EF 28-80mm f3.5-5.6 USM is a standard x3 zoom lens. Although it will suit any of the cameras in the EOS range, it has been designed to complement the quiet operation and built-in-zoom flash of the new EOS 100.
The quiet operation of the lens comes from the use of a USM to move the focusing elements. Manual focusing is also possible without switching from the AF mode. The length of the lens does not alter during zooming.
The built-in flash of the EOS 100 covers lens focal lengths from 28mm to 80mm, matching the range of the new zoom. Also, the length of the lens does not block light from the flash down to shooting distances of 1 metre, which is the closest shooting distance with the EOS 100 flash.
Excellent aberration correction and a lightweight compact design comes from the use a of a replica aspherical lens element. This is the first Canon lens to use such an element, which is made by moulding an aspherical surface onto a spherical lens using a ultraviolet light-hardened film.
The lens is also equipped with a flare-cut diaphragm, which moves independently between the second and third lens group to reduce flare throughout the entire local length range.
The EF 28-80mm f3.5-5.6 is equipped with a built-in macro mechanism which can be used at all focal length settings. The closest macro shooting distance is 0.5m, giving a magnification of 0.18x and an image area of about 131 x 196mm.
Optical construction: 10 elements in 9 groups (including one aspherical lens)