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.
Sigma AF 12-24mm f/4.5-5.6 HSM DG II - Review / Test Report
16 October 2007
Conclusion: The Sigma AF 12-24mm f/4.5-5.6 HSM DG II is an exciting piece of equipment. The field-of-view at its 12mm setting is simply stunning and regardless of any performance debate this is simply a substantial differentiator / selling point compared to all other ultra-wide DSLR lenses. Technically such an extreme lens is obviously not without issues. The corner quality leaves something to be desired at 12 mm and fully open so it is advisable to stop down to f/11.
Sigma AF 12-24mm f/4.5-5.6 HSM DG II - APS-C Format Review / Lab Test Report
30 September 2007
Conclusion: The Sigma AF 12-24mm f/4.5-5.6 HSM DG II is the only "one size fits all" (formats) ultra-wide zoom lens on the market. It can give you decent results and truly extreme views on full format DSLRs and it is very good along across the more "conventional" zoom range on APS-C DSLRs. On the "crop" format it shows very few weaknesses. At 17mm and especially 12mm it is very sharp across the image frame and the quality is still good to very good at 24mm.
Sigma AF 12-24mm f/4.5-5.6 EX DG HSM - Review / Lab Test Report
18 September 2007
Conclusion: The Sigma AF 12-24mm f/4.5-5.6 EX DG HSM is the most extreme full format ultra-wide zoom lens around and it is still a "mainstream" ultra-wide lens when used on APS-C DSLRs. If you're looking for a future-proof "duo-format" lens in this class - well, here it is. However, there're a couple of further good arguments in favor of the lens.
Sigma AF 12-24mm f/4.5-5.6 EX DG - Review / Lab Test Report
5 September 2007
Conclusion: The Sigma AF 12-24mm f/4.5-5.6 EX DG is the most extreme full format ultra-wide zoom lens around and it is still a "mainstream" ultra-wide lens when used on APS-C DSLRs. If you're looking for a future-proof "duo-format" lens in this class - well, this may be it. However, there're a couple of further good arguments in favor of the lens.