Independent lens maker Sigma has unwrapped a 135-400mm f/4.5-5.6 zoom designed for both film and digital SLRs.

Boasting three Special Low Dispersion lenses and an aspherical element, the £479.99 debutante is available in Sigma, Canon, Nikon, Pentax and Konica Minolta fits.

Billed as a ?compact ultra-telephoto?, the 13-element-in-11-group optic features a maximum magnification of 1:5.3 and a minimum focusing distance of 200-220cm.

The ?DG?-tagged newcomer uses a multi-layer lens coating designed to reduce flare and ghosting.

For details call Sigma Imaging (UK) Ltd on 01707 329999.