BlattWorld, Item Details: Canon 70-200mm f/4L USM

The EF 70-200mm f/4L USM is a compact, L-series professional telephoto zoom lens that offers the same outstanding level of quality and performance as the popular EF 70-200mm f/2.8L USM. The new lens is targeted towards advanced amateur and professional ph

otographers who are looking for top quality optics and lens construction, but do not require the larger aperture of the f/2.8 lens. With its small size and light weight, the EF 70-200mm f/4L USM is ideal for a wide variety of imaging applications includin

g nature and close-up photography as well as travel, sports, and portraiture. The EF 70-200mm f/4L USM is equipped with one Fluorite and two Super UD elements in a 16-element optical formula. Fluorite, which is crystalline rather than glass, has abnorma

lly low dispersion characteristics which optical glass cannot achieve. By incorporating fluorite in lenses, the focusing points of the three primary spectral colors of red, green and blue all meet at one point for ideal correction of chromatic aberration,

resulting in outstanding sharpness and overall image quality. Canon pioneered the use of Fluorite for camera lenses more than 30 years ago, and today remains the only manufacturer in the world to utilize this technology in SLR lenses. Super UD glass riva

ls the performance of Fluorite and further enhances image quality. The new lens features inner focusing and a ring-type Ultrasonic Motor (USM) that delivers fast, silent AF with full-time mechanical manual focusing. At 3.9 feet, the minimum focusing d

istance is one foot closer than the EF 70-200mm f/2.8L USM, providing outstanding flexibility for close-ups. The EF 70-200mm f/4L USM is fully compatible with Extension Tubes EF 12 and EF 25, as well as Extenders EF 1.4x and EF 2x. AF is supported with an

y EOS body when Extender EF 1.4x is used, and central-point AF is possible when Extender EF 2x is used with the EOS-3. Weighing only 1.56 lb., the new f/4L lens is constructed with a durable metal barrel that is typical of L-series professional lenses. Su

pplied accessories include a lens hood and pouch. A detachable tripod collar is optionally available.