Sigma's Zoomy 18-250mm Lens Review/Rant: Better to Have 1 Lens or Many?Wilson Rothman5/26/09 11:00pmFiled to: ReviewSigma 18-250mmLensDslr lensescamera lensesCanonNikonPentaxSonyTopentry-level DSLR861EditPromoteShare to KinjaToggle Conversation toolsGo to permalinkI was psyched when Sigma sent me an 18-250mm lens to test, because I am lazy and love the idea of a single lens that I can use to take most shots. At $530, it seemed like a decent price for that much range. But then I got to thinking...It's still a good price for all that it does. It's not a super fast lens—a decent F3.5-6.3—but it has an optical image stabilizer, which does wonders at the outer zoom ranges. The only other 18-250mm I could find any cheaper was this $450 Tamron, but there's no mention of stabilization. I spent a week or so taking all kinds of pictures—here's a sampling for you to critique, marvel at or simply disparage.The trouble comes when you start doing math. If you bought an entry-level DSLR camera from Canon, Nikon, Sony or Pentax—all compatible with the appropriate models of this lens—chances are you already have a lens, more than likely something in the 18-55mm range. That means that the chances of you being able to pick up a complementary lens in the 55-200mm or even 55-250mm range for under $200 are high. Suddenly, you're outfitted exactly like you would be if you bought this 18-250mm lens, and you'd probably have saved money doing it.And as I said, it's not a fast lens, and many would probably recommend something with more performance. If you're going to buy multiple lenses, why not buy ones that are dedicated to particular tasks? I call your attention to this Listmania list on Amazon, which shows nice budget-minded Canon "prime" lens selections. If you're looking at the used pricing (which we highly recommend is the way to go if you're not a pro), you can see that $530 would get you two, maybe three really nice fast lenses to augment your kit lens, in assorted focal ranges.