Sigma AF 24-70mm f/2.8 EX DG HSM (FX) - Review / Test Report - Sample Images & Verdict
Lens Reviews - Nikon / Nikkor (full format)

Sample Shots

The following sample shots were taken with a D3x and RAW-converted via CaptureOne 4.8.

Click on a thumbnail to view the original file (opens in a separate window).

Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 200
Focal Length 46.0mm
Aperture: f/8.0
Exposure 1/800s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 200
Focal Length 24.0mm
Aperture: f/5.6
Exposure 1/1000s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 200
Focal Length 32.0mm
Aperture: f/8.0
Exposure 1/640s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 200
Focal Length 48.0mm
Aperture: f/8.0
Exposure 1/250s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 200
Focal Length 70.0mm
Aperture: f/2.8
Exposure 1/2000s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 100
Focal Length 70.0mm
Aperture: f/5.6
Exposure 1/1000s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 100
Focal Length 44.0mm
Aperture: f/8.0
Exposure 1/800s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 100
Focal Length 70.0mm
Aperture: f/4.0
Exposure 1/500s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 200
Focal Length 70.0mm
Aperture: f/9.0
Exposure 1/640s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 200
Focal Length 48.0mm
Aperture: f/5.6
Exposure 1/1250s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 100
Focal Length 70.0mm
Aperture: f/4.0
Exposure 1/800s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 100
Focal Length 24.0mm
Aperture: f/2.8
Exposure 1/2500s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 100
Focal Length 24.0mm
Aperture: f/8.0
Exposure 1/320s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 100
Focal Length 40.0mm
Aperture: f/6.3
Exposure 1/640s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 100
Focal Length 70.0mm
Aperture: f/2.8
Exposure 1/1600s
Make NIKON CORPORATION
Model NIKON D3X
ISO Speed 200
Focal Length 70.0mm
Aperture: f/4.0
Exposure 1/1600s

Verdict

On paper, the Sigma 24-70/2.8 EX DG HSM is a very attractive lens. With its excellent build quality it feels like a pro tool and its huge diameter and front lens gives reason to hope for superior optical performance. Unfortunately, this is only true regarding sharpness in the image center stopped down.

Shot wide open, the lens shows considerably less resolution in the center and very disappointing border performance. In addition, vignetting is rather high, at 24mm even stopped down and the bokeh at all focal lengths is rather unpleasing.

So, in summary, it is a lot less convincing than the offerings by the system manufacturers. However, it is also a lot less expensive, so if you really need this specific focal range combined with a maximum aperture of f/2.8 and are willing to live with or work around its shortcomings, it may still be an attractive offer. There's not much choice in this segment, at least as long as the lens needs to start at 24 mm.

Optical Quality:    
Mechanical Quality:
Price/Performance:
      
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