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Overview: The Sigma APO 150-500mm F5-6.3 DG OS HSM is an ultra
telephoto zoom lens, designed to be used with full-frame cameras. It can also be
used with smaller APS-C size sensors with an effective increase in focal length
of 255mm to 850mm. It is a
great lens for travel, nature, and wildlife. The lens has the Canon EF-mount.
Lens Hood: The Sigma 150-500mm lens includes a lens hood to help
prevent stray light from entering the lens, causing flare, and to protect the
lens from rain, snow, and dust. When not in use, the lens hood can be inverted
and mounted onto the lens backwards for storage.
Tripod Ring: Because of the weight of the lens, a tripod
ring is included which lets you mount the lens onto a tripod. This provides
better balance and stability when shooting for long periods of time. You can
rotate the lens inside the tripod ring to allow you to shoot images in portrait
orientation with the lens attached to the tripod.
Optical Stabilizer: The built-in Optical Stabilizer allows
for handheld photography, even in low light scenarios, and compensates for image
blurring caused by camera shake. There are 2 OS modes: Mode 1 compensates for
overall camera shake, while Mode 2 detects vertical shake that occurs when
panning the camera horizontally.
Focus Mode Switch: The lens features a two-way switch for
setting the focus mode: AF (auto focus) or MF (manual focus).
Zoom Lock: The 150-500mm lens features a zoom lock to
prevent the lens from extending due to gravity when the lens is tilted downward.
The lock keeps the lens set at the 150mm position until you are ready to shoot.
Sigma Technology: The lens has the following Sigma
- Apochromatic (APO): In order to attain the highest
quality images, the APO lens has been made using special low-dispersion (SLD)
glass and is designed to minimize color aberration.
- Hyper Sonic Motor (HSM): The Hyper Sonic Motor uses
ultrasonic waves to drive the autofocus mechanism. This extremely quiet
operation helps avoid disturbing photographic subjects, and isn't picked up
by the microphone while recording video.
- Super Multi-layer Coating: Sigma's own Super
Multi-layer Coating suppresses lens flare and ghosting by preventing
reflections within the lens.
- Rounded Diaphragm: Using a rounded diaphragm instead of
a polygonal shaped one produces pleasingly rounded out-of-focus light points
when opened to near maximum aperture.
- Rear Focusing System: Sigma uses a focusing system that
moves the rear lens group, for high speed, silent focusing.
- Lens Construction: 21 Elements in 15 Groups
- Angle of View: 16.4° to 5°
- Number of Diaphragm Blades: 9
- Maximum Aperture: f/5-6.3
- Minimum Aperture: f/22
- Minimum Focusing Distance: 86.6"
- Filter Size: 86mm
- Maximum Magnifications: 1:5.2
- Dimensions: Diameter=3.723", Length=10.179"
- Weight: 67.4 ounces