News tagged ‘telephoto’

Friday, 19 Apr 2013

Sigma Introduces World's First F/1.8 Constant Aperture Zoom Lens

Sigma Introduces World's First F/1.8 Constant Aperture Zoom Lens

The widest aperture a zoom lens could achieve was f/2.8. All that has changed with Sigma announcing the Sigma 18-35mm F1.8 DC HSM Art lens, which features a maximum wide aperture of f/1.8 throughout its entire zoom range.

News for Past 12 Months