The Sigma 70-200mm f/2.8 EX DG APO OS HSM for Canon is the
second generation of large-aperture telephoto zoom lenses incorporating
Sigma's OS (Optical Stabilizer) anti-shake system. It offers the
equivalent of shooting at shutter speeds 3 to 4 stops slower than
without OS, thus allowing handheld telephoto zoom shooting even in
poorly lit conditions. Its HSM ensures quiet and high speed AF as well
as full-time manual focusing.
It features a large maximum aperture of f/2.8 that remains constant
throughout the zoom range, making it incredibly valuable when shooting
in low light situations such as wedding or other events. It is also
great when shooting fast-moving subjects such as sports, when fast
shutter speeds are needed to capture fleeting moments. The 70-200mm
f/2.8 is fast and versatile and at a length of 7.8 (19.8cm) will be a
tool that seldom sees the inside of your camera bag. The lens comes with
a petal-type lens hood plus an adapter to extend its length for users
with APS-c cameras.
Note: This lens is optimized for full-frame Canon DSLRs and
may also be used with smaller APS-c size sensors but it will increase
focal length to about 100-300mm with most cameras.
Note: When using the OS function of the lens with a camera
which incorporates a stabilizer unit, please turn the camera's
stabilizer unit off.
Note! Optical Stabilizer (OS) function will not work with film SLR cameras except Canon EOS-1V
Sigma's New APO 70-200mm F2.8 EX DG OS HSM is the second
generation of this large aperture telephoto zoom lens now incorporating
Sigma's Optical Stabilization (OS) anti-shake system. It uses two
sensors inside the lens to detect vertical and horizontal movement of
the camera. It works by moving an optical image stabilizing lens group,
to effectively compensate for camera shake.
Two FLD ("F" Low Dispersion) glass elements, which have the
performance equal to expensive fluorite glass, and three SLD (Special
Low Dispersion) glass elements, combine to provide excellent reduction
of aberrations and image quality.
The rounded 9 blade diaphragm creates an attractive blur to the out of focus images (bokeh).
Sigma has managed to make the lens more compact than its predecessor, measuring only 7.8" (8.64cm) in length.
The Super Multi-Layer lens coating reduces flare ghosting and
assures high image quality throughout the entire zoom range.
The exterior of this lens is EX-finished to denote the superior
build and optical quality, and to enhance its appearance.
The lens DG designation translates to large-aperture lenses with
wide angles and short minimum focusing distances. With an abundance of
peripheral illumination, they are ideal lenses for Digital SLR Cameras
while retaining suitability for traditional 35mm SLRs.