Reviews and Problems with Sigma 15-30mm F3.5-4.5 EX DG ASPHERICAL
Showing 1-6 of 6
29 November 2012
Summary: I am so far, pleased with the lens, I recently got a Canon 5d, so I had to get rid of my Sigma 10-20 and replace it Wide angle lens that would work on a full frame. Since the Sigma 12-24 was out of my price range I settled with this one.
Summary: Ideal for DX, but not so good on FX. Normally, when you shoot wide angle, you're interested in the whole image sharpness and not only the center. This lens did not quite work out for me on my D700 because of the corner softness. I ended up replacing it with the new Nikon 14-24mm.
Conclusion: Compare to the examples I tested of Canon zooms in a similar range, this lens was sharper so I bought it. Use in the real world taught me that it suffers awfully from blue circular flare marks - my first copy was so awful for it I returned it for another.
Conclusion: Most reviewers report this as a sharp lens. However, in my experience, its sharpness is only average--not any better than the Canon 300D kit lens in the range they have in common. Even on a 1.6 crop factor camera, edge sharpness deterioriates noticably at wider aperatures.
Conclusion: Bought this lens a while ago, and though the 15mm is great, I find that the range of the zoom is not great enough to warrant it being a zoom lens - You'd be better off getting a 15mm lens, and a 28mm f/1.8 or something. The Image quality of this lens is good, and produces sharp results.
Pros: Good value for money, Sharp lens, Wide
Cons: Flare, Flare, Flare, Flare. Size of the lens, Range of zoom
Conclusion: The first thing that impressed me about this lens was the construction. It's really solid and feels good to hold. I wanted to get a real wide angle zoom and retire my 24/2.8. I bought this used for around US$300 which was a pretty good deal.
Pros: Superb construction and solid feel.
Cons: Not so hot optics, weird AF/MF switching mechanism, massive flare.