It uses an 82mm filter thread, which, while large, is also in line with other current 24-70mm f/2.8 lenses. Optically, the 24-70mm Art is composed of 19 elements in 14 groups and the aperture diaphragm uses nine rounded blades for rounder blur circles, or bokeh.
SIGMA 24 70 2.8 NIKON SAMPLE PICTURES MANUAL
We can’t think of many situations where you’d necessarily want manual override and continuous autofocus to both be active at the same time, but it’s a unique feature of this lens, nonetheless. With the focus switch in the standard AF position, trying to override continuous autofocus will simply result in the lens fighting your inputs but with the switch set to MO, as soon as you begin to rotate the focus ring, the lens disengages the autofocus drive, letting you dial in your preferred focus without interruption. While the internal Hyper Sonic Motor (HSM) allows for full-time manual focus override regardless of which position the switch is in, the MO setting is specifically designed for shooting with continuous autofocus enabled. On the left side of the lens you’ll find switches to turn optical stabilization on or off and set focus to manual, auto, or MO, for manual override.
SIGMA 24 70 2.8 NIKON SAMPLE PICTURES SERIES
The Art series has an established reputation for excellent build quality and that remains true with the 24-70mm F2.8. As expected, we were again impressed - but the 24-70mm isn’t quite as infallible as other Art lenses. Having recently given the Sigma 14-24mm F2.8 Art a whirl, however, it seemed only fitting to try out the next f/2.8 zoom in the lineup. We have been continuously impressed with the Art series, but our praise has gone mainly to fixed focal length, or prime, lenses. Like other lenses in Sigma’s Art series, the 24-70mm F2.8 is built to take on the best that first-party manufacturers have to offer - that is, it’s not just some cheap knockoff, despite the lower price. And with an MSRP of $1,299, it comes in well below the first-party equivalents from Canon, Nikon, and Sony. The 24-70mm F2.8 DG OS HSM Art builds on Sigma’s previous 24-70mm model by adding stabilization and a revamped optical design that promises better image quality.
But the 24-70mm is also known for its high cost, a problem that Sigma’s newest contender in this arena is hoping to solve without sacrificing quality or performance.
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