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Sigma Updates 105mm f/2.8 Lens

Ronkonkoma, N.Y. –


introduced Tuesday a newly upgraded version of its 105mm F2.8 EX DG OS HSM macro

The 105mm F2.8 EX DG OS HSM macro lens carries a $1,400 suggested
retail and now features Sigma’s proprietary Optical Stabilizer (OS) technology.

Sigma said the telephoto reach and macro focusing make the lens
perfect for capturing images of insects and small creatures.

When used with a wide maximum aperture and short telephoto focal
length, the lens is also well suited for portrait work.

A Special Low Dispersion (SLD) lens and one high refractive index
SLD lens are added to correct a variety of aberrations and distortions.

“This lens is a fantastic addition to our extensive lineup of
macro lenses,” stated Mark Amir-Hamzeh, Sigma America president. “This is our
fourth prime macro lens and the second of which that now includes our Optical
Stabilization technology, which steadies the image for handheld use. This is
yet another example of Sigma’s dedication to providing an array of unique lens
that capture incredible imagery.”

The lens also uses Sigma’s Hyper Sonic Motor (HSM) for quiet and
high-speed autofocus. It uses a rounded nine-blade diaphragm to create soft blur

The lens features a floating focusing system that moves two
different lens groups in the optical path to different positions.

Sigma said the system compensates for astigmatic aberration and
spherical aberration, and provides extremely high optical performance from
infinity to 1:1 macro.

A super multi-layer coating is said to reduce lens flare and
ghosting, while maintaining a high contrast.

The lens is also compatible with Sigma’s APO teleconverters.