Details
Canon EF 70-200mm f/4L USM LensHigh performance, L-series telephoto zoom lens combining light weight and compactness with an f/4 maximum aperture. Inner focusing and the ring USM enable quick and quiet auto-focusing. Also, a circular polarizing filter can be attached and used without difficulty because the front lens element does not rotate during focusing. The tripod collar (sold separately) is the same one used with the EF 300mm f/4L USM.
Like every autofocus Canon "L" lens, the EF 70-200mm f/4LUSM delivers optical performance equal to similar fixed focal length lenses, with silent, high-speed ultrasonic (USM) focusing and full-time manual focus override capacity. A focus range limiting option also enables faster autofocus rates.
Distortions and aberrations are remarkably small for a lens of such capability. This lens combines 1 artificial fluorite element with 2 UD (Ultra-low Dispersion) elements to help achieve images free of secondary spectrum aberrations, which are often the bane of consumer grade telephoto zooms.
The minimum focusing distance is 3.9 ft (1.2m) throughout its entire range of focal lengths, and it accepts 67mm screw-in filters.
- An autofocus telephoto zoom lens for both film and digital cameras with constant f/4 maximum aperture performance
- An ultrasonic autofocus motor provides fast, silent autofocus action
- Full-time manual focus override enables precise manual focus at all times, even in AF mode
- Two focus distance ranges enable you to adjust the autofocus to fit your needs and shorten AF speeds. The ranges are 3.9 ft. to infinity for closer subjects and 9.8 ft. to infinity
- Internal zooming and focusing means that the lens' front element does not rotate
- Uses 1 fluorite and 2 UD (Ultra-low Dispersion) elements to help control secondary spectrum aberrations
- Uses 67mm filters and an optional tripod collar (A-IIW) is compatible as are the 1.4x II and 2.0x II extenders