Two top new Sigma lenses, a remote flash controller, and plenty more
Sigma’s latest standard zoom is vying with Nikon’s AF-S 24-70mm f/2.8E AF-S ED VR to win a place in your kit bag. It shares the same 88mm barrel diameter as the Nikon, but at just shy of 108mm long it’s considerably shorter. Like the Nikon, it boasts an constant f/2.8 aperture, while its 19-element optical stack is designed to maximize the resolving potential of cameras with ultra-high-res sensors, like the D810. It features three SLD (Special Low Dispersion) and four aspherical elements to control aberrations, flare and distortion. Ultra-precise lens element processing, measured in hundredths of a micrometer, is supposed to offer improved bokeh quality by minimizing unsightly concentric bokeh rings that can be produced by normal aspherical elements.
The focus on quality continues on the outside, as the lens is built to Sigma’s range-topping Art standard. That translates to a mostly metal lens barrel, encircled by tough TSC (Thermally Stable Composite) control rings and switches. The barrel is also splashproof and features a weather-sealed mount, along with a water- and oil-repellant coating on the front element. This all helps increase the versatility of a lens that already offers one of the most popular focal length ranges. And that flexibility extends into low light thanks to a brand new Optical Stabilizer. The lens also gets a newly designed HSM (Hyper-Sonic Motor) autofocus system that offers 1.3x the torque of its predecessor for faster and more accurate focusing. The new F-mount version also benefits from an electromagnetic aperture diaphragm that ensures extra precision when using auto exposure during continuous shooting. First impressions_ A fast, mid-range zoom lens that looks very good on paper; we’ll be sure to put Sigma’s claims to the test as soon as possible.