Sigma 150mm f/2.8 APO Macro EX DG HSM lens

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150mm f/2.8 APO Macro EX DG HSM
Sigma 150 macro.jpg
Key features
Maker: Sigma Corporation
Image stabilization: No No
Ultrasonic motor: Yes Yes
Short back focus: No No
Macro capable: Yes Yes
Application: Macro / Telephoto
Technical data
Focal length: 150mm
Aperture (max/min): f/2.8 - f/22
Construction: 12 groups / 16 elements
# Diaphragm blades: 9
Close focus distance: 38 cm / 15.0 in.
Max. magnification: 1:1
Physical
Max. diameter: 79.6 mm / 3.1 in.
Max. length: 137 mm / 5.4 in.
Weight: 895 g / 31.6 oz.
Filter diameter: 72 mm
Accessories
Lens hood: Barrel
Angle of view
Diagonal: 16.4º
History
Introduced: January 2006
Retail info
MSRP US$ $880.00 USD

The Sigma 150mm f/2.8 APO Macro EX DG HSM is a telephoto macro prime lenses made by the Sigma Corporation.

The lens is produced for the SA mount, Canon EF mount, Four Thirds System, and the Nikon F-mount varieties, all have the same optical formula.

When used on a digital crop body with a field of view compensation factor of 1.6x, such as the Canon EOS 450D, it provides a narrower field of view, equivalent to an 240mm lens mounted on a 35mm frame body. With a 1.5x body such as the Nikon D300 It provides a less narrow field of view, equivalent to an 225mm lens mounted on a 35mm frame body. With a 1.3x body such as the Canon EOS-1D Mark III It provides an even less narrow field of view, equivalent to an 195mm lens mounted on a 35mm frame body.

Technical information[edit]

The Sigma 150mm f/2.8 APO Macro EX DG HSM is a consumer-level macro lens. It is constructed with a plastic body and a metal mount. This lens features a distance window with magnification scale. An 9-blade, maximum aperture of f/2.8 gives this lens the ability to create very shallow depth of field effects. The optical construction of this lens contains 16 lens elements, including two SLD (Special Low Dispersion) elements. This lens uses an inner focusing system, powered by a ring type HSM motor. Auto focus speed of this lens is slow in absolute terms, being a macro lens it is not as fast as most ring HSM lenses. However, it remains very decent for a macro lens. The front of the lens does not rotate nor extend when focusing. This lens is compatible with Sigma teleconverter lenses.[1]

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