Sigma has announced two new lenses for the Four Thirds digital SLR system, both due for UK launch in April.

The 10-20mm f/4-5.6 EX DC HSM boasts a minimum focusing distance of 24cm and three Special Low Dispersion (SLD) elements to help reduce colour aberration. It weighs 470g and will cost £369.99.

Also unveiled at PMA was the 70-200mm f/2.8 II EX DG HSM which includes three Extraordinary Low Dispersion (ELD) elements and two SLD elements.

It weighs 1370g and costs £799.99.

Sigma Four Thirds lensPMA Live