Reviews and Problems with Sigma 12-24mm F4.5-5.6 EX DG ASPHERICAL /HSM
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Sigma 12-24mm F4.5-5.6 EX DG ASPH HSM Lens Review
SLR Lens and Camera Reviews
3 June 2009
Summary: Sigma 12-24mm f/4.5-5.6 EX DG HSM shows pretty decent performance throughout the zoom range from f/8 and on. At wider apertures the lens exhibits some weakness around borders (primarily in the 12-17mm range), so you should be prepared to stop down to achieve the best results. Somewhat higher chromatic aberration is another issue to consider here.
Conclusion: A huge field of view, coupled with a sensible zoom range that is still useful on cropped sensor cameras as well as the full frame that it is designed for make this lens extremely practical. A great item of award winning kit, especially if you use more than one format of sensor.
Pros: Enormous field of view, Amazing control of distortions, Solid build quality with good protection of front element
Cons: Difficult to use front mounted filters (Though not impossible), Bulbous front element needs careful handling.
Excerpt: 'Lens Of The Year 04-05' according to its EISA award, the Sigma 12-24mm EX DG HSM covers both full frame and APS-C too. Does it provide the best for both worlds? The What Digital Camera Sigma...
Indy Ultra-Wide Zooms For Digital SLR Cameras; We Test The Sigma AF 10-20mm, Tamron SP AF11-18mm, And Tokina AF 12-24mm
1 February 2001
Excerpt: As digital SLR cameras have become more affordable, an increasing number of photography and imaging enthusiasts have made the shift to digital capture. But there's one common complaint--the ultra-wide angle lenses designed for 35mm systems do not produce an expansive angle of view with any of the affordable digital SLRs. Because such cameras employ a sensor that's smaller than a 35mm film frame, the effective focal length of any lens is increased.