This lens is great for everyday. The f4 provides good light in most situations. The lense has a solid feel and good build quality. Focus has been very good producing clear images.

Purchased this lens after reading some good reviews. The lens wasn't packaged very well and was rattling around in the box. When trying the lens it was soft at all ranges, so adjusted with the Sigma Dock and got good performance from 35mm - 105mm range, but poor from 24-35mm range.

Lately Sigma had quite a run in delivering very decent products not only in terms of value but also optical & mechanical quality as well as improved quality control. The transformation of their product lineup is still at the beginning but they are busy executing their new product vision.

The Sigma 24-105mm F4 DG OS HSM ($899) is a standard zoom lens for full-frame cameras . Sigma sells it in Canon, Nikon, Sigma, and Sony mounts, and the lens is eligible for the company's mount conversion service if you choose to change systems.

4.4x zoom range; Constant f/4 aperture; Quite sharp; Optically stabilized; Full-frame coverage; USB dock compatibility

Some distortion throughout zoom range

I've been a working photographer for over 30 years, and never owned a Sigma lens before. For years I shot weddings/events/meetings with Mamiya/Pentax (medium format), and gradually moved to Canon/Nikon in the digital years. During that timeframe, I only purchased and used OEM lenses.

SUPER SHARP. Using on a D7100 and D500. Perfect focal range for family photos, portraits, groups, etc. Great "walk around" focal length. LOVE this lens. Very solidly built like the other ART lenses. It's heavy, just shy of 2 pounds. Smooth stiff zoom ring, doesn't float. Really fine quality optics.

Gary Wolstenholme reviews this new Art lens from Sigma with a useful range of 24mm to 105mm.

Excellent sharpness throughout the zoom range; Good build quality; Constant f/4 maximum aperture; Effective optical stabilisation

82mm; No weather sealing

Sigma's 24-105mm f/4 DG OS HSM Art lens is a premium lens designed for full frame cameras', although it can also be used on cameras with APS-C sensors. As an 'Art' lens, it's designed to offer 'sophisticated optical performance' and meet the needs of creative photographers.

The new Sigma 24-105mm F4 DG OS HSM offers a versatile focal range whilst being tack-sharp from 24mm to 80mm, particularly in the centre of the frame. Sharpness at 105mm isn't quite as good, or at the edges of the frame throught the zoom range, but overall the Sigma 24-105mm F4 DG OS HSM is one...

Sigma's new full-frame 24-105mm f/4 zoom competes in an already well-served area of the market but immediately inspires confidence with its substantial feel and imposing front element.

Constant f/4 aperture; Full-frame coverage; Full-time MF option; Optical stabilisation; Competitive pricing

Some chromatic aberration; Variable MTF results; Rather weighty