Priced at a very affordable £299, Sigma’s 70-300mm f/4-5.6 DG OS is a light lens with a total length of just 126mm when fully retracted at 70mm.
Within the construction of the Sigma 70-300mm f/4-5.6 DG OS there’s a Special Low Dispersion glass element to correct aberrations along with Super Multi Layer Coating to reduce flare. It also features Sigma’s Optical Stabilizer (OS) technology that claims to capture sharp shots at shutter speeds up to 4 stops slower than normal.
Out the box it comes with a plastic lens hood that fixes via a bayonet fitting, though attaching this did cause the front element to wrench around. The lightweight lens felt well balanced when fitted to our Nikon D5100, and had a lovely smooth zoom action, though when switching over to MF we found that the front element would slide back and forth when the camera was tilted. That said, the AF proved to be quick and responsive, despite the motor making a particularly loud whirring sound as it sought its target. This could prove a problem for photographers seeking silent operation. In contrast, the OS was whisper quiet and performed well.
- Street price: £230 (As of July 2016)
- Visit: www.sigma-imaging-uk.com
This review was first published in the August 2012 issue of Digital Photo - download back issues here.