Sigma APO 50-150mm F2.8 EX DC OS HSM

Large aperture telephoto zoom lens, designed exclusively for digital SLR cameras and incorporating Sigma’s original Optical Stabilizer function.

This large aperture telephoto zoom lens incorporates Sigma’s original OS (Optical Stabilizer) function which offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible.  This enables hand held tele-photography easily.  Six SLD glass elements provide excellent correction for color aberration.  The Super Multi-Layer Coating reduces flare and ghosting and provides high image quality throughout the entire zoom range.  HSM ensures fast and quiet auto-focusing as well as full-time manual focusing capability. 

This lens incorporates an inner focusing and inner zooming system.  The overall length of the lens does not change during focusing and zooming, ensuring convenient handling.  This lens has a minimum focusing distance of 80cm and maximum magnification of 1:6.3.  The rounded 9 blade diaphragm creates an attractive blur to the out of focus areas of the image.  Sigma’s APO TELE CONVERTER can also be used with this lens if a longer focal length is required.

Sigma’s own unique OS technology
This lens is equipped with Sigma’s own unique OS (Optical Stabilizer) function.  This system allows the photographer to use shutter speeds approximately 4 stops slower than would otherwise be possible.  As compensation for camera shake is visible in the view finder, the photographer can easily check for accurate focus and ensure there is no subject movement.  The Optical Stabilizer unit has two modes, Mode 1 is ideal for general photography and Mode 2 is designed for panning subjects such as racing cars.
Superior image quality
Six SLD (Special Low Dispersion) glass elements provide excellent correction for color aberration.  The lens design provides correction for spherical aberration, ensuring high images quality throughout the entire zoom range.
F2.8 Large aperture throughout the entire zoom range
The narrow depth of field enables photographers to emphasize the subject and the large aperture provides a bright viewfinder image.  Together with the OS function, they help the photographer confirm accurate focusing.
Reduce Ghosting and Flare
The Super Multi-Layer Coating reduces flare and ghosting and provides high image quality even in backlight conditions.
HSM (Hyper Sonic Motor)
The Hyper Sonic Motor (HSM) ensures a silent, high-speed AF function as well as full-time manual focusing capability.
Close focusing capability
This lens has a minimum focusing distance of 80cm and maximum magnification of 1:6.3, making it ideal for close-up photography.
Convenient handling
This lens incorporates an inner focusing and inner zooming system.  The overall length of the lens does not change during focusing and zooming, ensuring convenient handling.  The inner focusing system also eliminates front lens rotation, making the lens particularly suitable for using circular polarizing filters.  A removable tripod collar (TS-21) is included as a standard component.
Rounded diaphragm
This lens has a rounded 9 blade diaphragm which creates an attractive blur to the out of focus areas of the image.
APO Tele-Converter (Optional)
The addition of Sigma’s 1.4x EX DG APO or 2x EX DG APO TELE CONVERTER produces a 70-210mm F4 AF telephoto zoom lens or a 100-300mm F5.6 AF telephoto zoom lens respectively.
Specification
Lens Construction 21 Elements in 15 Groups
Angle of View (for SD1) 31.7 – 10.8 degrees
Number of Diaphragm Blades 9 Blades (Rounded diaphragm)
Minimum Aperture F22
Minimum Focusing Distance 80cm / 31.5in.
Maximum Magnification 1:6.3
Filter Size Diameter 77mm
Dimensions Diameter 86.4mm× Length 197.6mm / 3.4in.×7.8in.
Weight 1,340g / 47.3oz.
for Sigma mount
Corresponding AF Mounts SIGMA,
NIKON (D),
CANON
* Vignetting will occur if the lens is used with a digital SLR which has an image sensor larger than APS-C size, a 35mm film SLR or an APS film SLR camera. * The appearance and specification are subject to change without notice.

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