Sigma 24-105mm f4 OS Art review - Samples
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Samples

The following images were taken with the Sigma 24-105mm f4.0 DG OS HSM on a D800. Each image was recorded in RAW and converted with Lightroom 5.3 at Camera Standard settings. Reduction of lateral CA is ON, Noise-reduction is set to 0, sharpening to 70/0.5/36/10.Apart from WB or exposure no extra tone-, color-, or saturation-adjustment was used. You can click on each image to access the large original. Please respect our copyright and only use those images for personal use.

Most of the following images were shot wide open at f4.0.

The first shot is a standard test-shot to see what kind of Bokeh you can expect from this lens – although the maximum aperture of f/4.0 is too small to produce really satisfying results even on a full-frame DSLR. The 50% crops are from the foreground, the sharpest point, and the background in the overall image and demonstrate the rendering of out-of-focus elements at closer distances (approximately 0.9m). Both foreground and background Bokeh looks pretty smooth at 105mm but are far from being impressive.

 

Books: Bokeh shot with Sigma 24-105/4.0 OS at 105mm f4.0 on a D800
Main image and all 50% crops: 105mm, f4.0, 1/8 sec, 100 ISO
This shot is also available in 105mm 5.6, 52mm f4.0, and 52mm f5.6
105mm, f4.0, 100 ISO
105mm, f4.0, 100 ISO
105mm, f4.0, 100 ISO

The following shot shows impressive center-resolution at close distances. It is also proof that background-blur becomes more pronounced the closer you get to your subject. And that there is some slight outlining in the background blur to be seen in the upper left corner:

Flowers: close-up shot with Sigma 24-105/4.0 OS at 105mm f4.0 on a D800 from around 60 cm
Main image and all 100% crops: 105mm, f4.0, 1/800 sec, 100 ISO
105mm, f4.0, 100 ISO
105mm, f4.0, 100 ISO
105mm, f4.0, 100 ISO

Green outlining in the background from loCA is pretty limited in the following shot, which also shows the pin-cushion distortion of this lens:

Pillars: shot with Sigma 24-105/4.0 OS at 35mm f4.0 on a D800
Main image and all 100% crops: 35mm, f4.0, 1/1000 sec, 100 ISO. This shot is also available in f5.6, or in 24mm f4.0 / f5.6, and 52mm f4.0 / f5.6, and 75mm f4.0 / f5.6

The next shot shows the great overall dynamic range that this lens is capable of reproducing even wide open:

Sculpture: shot with Sigma 24-105/4.0 OS at 42mm f4.0 on a D800
Main image and all 100% crops: 42mm, f4.0, 1/15 sec, 100 ISO

Good detail with acceptable vignetting is shown in the next shot:

Lorenzkirche: shot with Sigma 24-105/4.0 OS at 52mm f5.6 on a D800
Main image and all 100% crops: 52mm, f5.6, 1/500 sec, 100 ISO. Also available in f8.0 and f11, or in 24mm f4.0 / f5.6 / f8.0, and 35mm f4.0 / f5.6 / f8.0

Sharp reproduction of details and only little fringing on specular highlights:

Schoener Brunnen: shot with Sigma 24-105/4.0 OS at 105mm, f4.0 on a D800
Main image and all 100% crops: 105mm, f4.0, 1/250 sec, 100 ISO
105mm, f4.0, 100 ISO
105mm, f4.0, 100 ISO
105mm, f4.0, 100 ISO

Nice blurring of out-of-focus areas:

Putto: shot with Sigma 24-105/4.0 OS at 105mm, f4.0 on a D800
Main image and all 100% crops: 105mm, f4.0, 1/60 sec, 100 ISO

The texture of the metal is faithfully reproduced:

Monster: shot with Sigma 24-105/4.0 OS at 75mm, f4.0 on a D800
Main image and all 100% crops: 75mm, f4.0, 1/500 sec, 100 ISO
75mm, f4.0, 100 ISO
75mm, f4.0, 100 ISO
75mm, f4.0, 100 ISO

At 52mm the reproduction of details is pretty good even wide open:

Heilig Geist Spittal: shot with Sigma 24-105/4.0 OS at 52mm, f4.0 on a D800
Main image and all 100% crops: 52mm, f4.0, 1/1000 sec, 100 ISO
This shot is also available in 24mm, 35mm, 75mm, and 105mm
52mm, f4.0, 100 ISO
52mm, f4.0, 100 ISO
52mm, f4.0, 100 ISO

High contrast with glaring contra light is handled quite well in the following shot:

Angelic Salutation: shot with Sigma 24-105/4.0 OS at 24mm, f4.0 on a D800
Main image and all 100% crops: 24mm, f4.0, 1/8 sec, 100 ISO

Another wide-open shot to judge out-of-focus rendering in the foreground and background:

Daffodils: shot with Sigma 24-105/4.0 OS at f105mm, f4.0 on a D800
Main image and all 50% crops: 105mm, f4.0, 1/800 sec, 100 ISO
105mm, f4.0, 100 ISO
105mm, f4.0, 100 ISO
105mm, f4.0, 100 ISO

The borders of the image show some softening.

Castle: shot with Sigma 24-105/4.0 OS at 35mm, f4.0 on a D800
Main image and all 100% crops: 35mm, f4.0, 1/1250 sec, 100 ISO
This shot is also available in 24mm, 52mm, 75mm, and 105mm

Great detail at the center but a litlle softness wide open at the borders of this 42mm shot.

Door: shot with Sigma 24-105/4.0 OS at 42mm, f4.0 on a D800
Main image and all 100% crops: 42mm, f4.0, 1/500 sec, 100 ISO

Another shot that tests the ability of the lens to reproduce various types of textures:

Old House: shot with Sigma 24-105/4.0 OS at 58mm, f4.0 on a D800
Main image and all 100% crops: 58mm, f4.0, 1/200 sec, 100 ISO

Shooting at minimum focus distance at 105mm show-cases the ability of this lens to magnify very small details. But it is advisable to stop down to f5.6 because the same shot at f4.0 had clearly lower contrast. But even stopped down some residual spherical aberrations remain which cause haloing that can clearly be seen on the left crop.

Bank Note: shot with Sigma 24-105/4.0 OS at 105mm, f5.6 on a D800 from around 45cm
Main image and all 100% crops: 105mm, f5.6, 1/10 sec, 100 ISO
105mm, f5.6, 100 ISO
105mm, f5.6, 100 ISO
105mm, f5.6, 100 ISO

For more examples check out all my high-resolution Sigma 24-105/4.0 OS sample images.

Now check out my verdict of the lens!

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