Sigma has bolstered its Optical Stabiliser (OS) lens line-up with the addition of the 70-300mm f/4-5.6 DG OS. The lens, designed for DSLRs with and APS-C size sensor, will carry a UK price of £399.99.

Sigma claims that its OS technology allows photographers to use shutter speeds around four stops slower than would otherwise be possible.

‘It makes telephoto shooting easy for many types of photography such as sport and nature,’ claims Sigma.

The 16-elements-in-11-group lens includes a Special Low Dispersion glass element designed to correct aberrations, plus a Super Multi-Layer Coating to help reduce flare and ghosting.

Features include a minimum focusing distance of 150cm and a maximum magnification of 1:3.9.

The lens, which has nine diaphragm blades, will be available in Sigma, Nikon, Canon, Pentax and Sony AF mounts.

A spokesman confirmed that the lens will be available in all fittings from the end of this month.

For details call Sigma Imaging Limited on 01707 329999 or visit