Summary: i got my copy used off of craiglist for $160. the lens had been well-used, like a divorcee with excess alimony. still, she was clean, with no scratches or dust, and she had a gleam in her eye -- or was that flare? anyway, this lens has already paid for itself a few times. its really wide on FX.
Conclusion: The images taken with this lens are very good and on par with Canon L zooms I own. Versatile focal range - terrific on a crop body. You need to watch for purple flare, but overall, a very good lens at any price level. Highly recommended.
Conclusion: The positive of this lens is that it is sharp. I would say almost as sharp as the 16-35 Mk II. However, its Achilles heel is that it is intolerant of direct light. Even the slightest direct light creates purple flares.
Pros: Wide. Sharper than my Canon 17-35L - especially in the corners.
Cons: Difficult to use with filters. Flares horribly - even in the slightest direct light.
Conclusion: I bought this seven years ago with my eos 3 and with 20d and 5d it is so useful. My longest lasting lens and looks brand new. The build quality is great for what it is, and I am still not tempted to buy any newer uw zooms. The lens is sharp and colors don't disappoint.
Pros: IQ, price and good range. Build quality is nice for what it is. Spectacular with film, and even with 1.6 crop it is useful.
Cons: flare from the slightest thing, "dual focus" is strange, unnecessary huge. No front filters!, protruding front element, noisy af
Sigma 15-30 f/3.5-4.5: Fine lens but not without flaws
Marshal Shlafer, Amazon
1 June 2009
Summary: I purchased this lens (used, like new condition) to take on a trip as something much wider than my Nikkor 28-300mm zoom, since I had to travel light. In my search for an almost ultra-wide zoom, there were slim pickings at a price point I could currently afford, especially a lens compatible with an...
Summary: I just to own this lense and its an owsome lense the image its sharp but you must be very stable to void blurriness or else it become kind of sensitive because it does not have image stabilization but most of the times its your hands for the stability or use a tripot and fix your problems, after all...
Conclusion: I have 2 of these fantastic lenses, one for Nikon crop camera I use and one foe FF Canon 1Ds. The both are super sharp and don't far behind Canon and Nikon zoom lenses. If your on a tight budget or just like great value for your $$ then I would recommend this lens.
Pros: Excellent new cost and even better used. Sharp, well built and can be used on FF and Film cameras.
Cons: No filter thread and hood adapter unusable on FF. A little soft wide open.
ConsumerAdvocate (dakotad555) at (gmail) dot (com) "ConsumerAdvocate (dakotad555) at (gmail) dot (com)", Amazon
16 August 2008
Summary: I purchased this lens because I did not want to drop a grand for the . After reading professional reviews, I'm glad I saved my money. This lens performs almost identically to the more expensive Nikkor option, at a third the price!