One of their latest products is the Sigma 24-105mm f/4 HSM DG OS | A. As the name implies, it is part of the "Art" series, thus their most prestigious segment of lenses. In Nikon land, it obviously targets the Nikkor AF-S 24-120mm f/4 VR, which so far has been the only real option option for...

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.

I got this lens for portraits. That might sound daft considering all the rave about primes but when I heard a top portrait photographer say she used the 24-105 when pointing out that you don't need a crazy expensive lens to do beautiful photos, I bought it. And I love it.

This lens performs as well as the Sony at a third of the price. The images are in sharp focus and the lens is easy to use and works perfectly with my Sony 9ii.

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.

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.

Just great!!!!

A very capable lens that is a joy to handle; Works very well with my D750

Heavy; Zoom opposite direction than Nikon

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.

Great lens, on time, as described

I was asked to test this lens with some reluctance. I was greatly surprised with the image quality. The lens is so good that I immediately sold my Nikkor 24-70 and purchased the Sigma 24-105.

Consistent Output; Durable; Fast / accurate auto-focus; Strong Construction