Sigma AF 18-50mm f/3.5-5.6 DC - Review / Test Report - Sample Images & Verdict
Lens Reviews - Canon EOS (APS-C)

Sample Shots

Ok, finally here're some sample shots taken with the EOS 350D (straight JPEGs). Click on a thumbnail to view the original file (opens in a separate window). Please note that the full-size images are supplied in JPEG2000 format. You should be able to display the images in most modern imaging applications such as Photoshop. This is a measurement to limit the bandwidth which is a scarce resource.

If you prefer to watch the full-size samples in your Internet Explorer browser you may try the JPEG2000 ActiveX Control (Windows) plug-in. I've checked out a few plug-ins for Mozilla/Opera but haven't really found a good one. Firefox will open IE if you install the ActiveX Control above.

ALL IMAGES KINDLY PROVIDED BY WERNER VAN LOO!

Make Canon
Model Canon EOS 350D DIGITAL
ISO Speed 200
Focal Length 18.0mm
Exposure Data: f/10.0 @ 1/250s
Size 2304x3456
Make Canon
Model Canon EOS 350D DIGITAL
ISO Speed 200
Focal Length 18.0mm
Exposure Data: f/7.1 @ 1/160s
Size 2304x3456
Make Canon
Model Canon EOS 350D DIGITAL
ISO Speed 200
Focal Length 50.0mm
Exposure Data: f/5.6 @ 1/125s
Size 2304x3456
Make Canon
Model Canon EOS 350D DIGITAL
ISO Speed 200
Focal Length 50.0mm
Exposure Data: f/9.0 @ 1/125s
Size 3456x2304

Verdict

The Sigma AF 18-50mm f/3.5-5.6 DC is not a lens without flaws - specifically quite extreme distortions and very high CAs at 18mm as well as soft borders at wide-open aperture at 18mm and 28mm. Nonetheless you can get lots of bangs for your (few) bucks with this lens. If you limit your aperture settings to f/5.6 and smaller the resolution figures are pretty impressive and quite comparable to much more pricey zooms out there. Sigma was smart enough to avoid more ambitious max. apertures where optical problems are a magnitude more pronounced. Naturally Sigma had to implement some compromises on the mechanical side like a rotating front element and a rotating focus ring in AF mode but other than that the build quality of this little lens is actually quite decent. So if you can live with its shortcomings and you just can't spend more for a faster zoom this Sigma is a viable option and all-in-all a slightly better bet than e.g. the cheapo Canon EF-S 18-55mm f/4.5-5.6 II.

Optical Quality:    
Mechanical Quality:
Price/Performance:
      
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