Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- User Rating: 
Summary for Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- Sigma 55-22mm zoom
Notes on Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- It was a Christmas present for my wife. Excellent quality.Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens for Nikon Digital SLR Cameras
Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- User Rating: Summary for Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- plastic build, light weight, surprising optics
Notes on Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- i briefly had this lens and though i traded it in, it's actually a pretty good deal for the money. anyone expecting a pro-quality lens or a 2.8 at this price is insane.
the first thing you notice is that the build quality is super-plastic-y, even toy-like. that was a turn-off for me, but to get a better-made lens, you'll have to pay hundreds, if not thousands more -- the nikon 55-200 alternatives are also plastic, and sigma doesnt offer a 55-200 in an EX finish.
still, the sigma 55-200 does have some advantages if you're not overly concerned with name-brand snob appeal. it autofocuses very quickly due to its short barrel and excels at tracking moving subjects handheld due to its light weight. and the optics are clearer and sharper than you would think, although there is a bit of fall-off at 200mm. this lens would obviously appeal to budget-minded shooters, but it would also be a good backup lens for travel for someone who doesnt want to drag along a lot of heavy glass. and at the price it's being offered for, you could easily buy two in case one breaks.
note: unfortunately for d40 users, the sigma 55-200 has no internal motor, so your camera will not AF with it.
Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- User Rating: Summary for Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- Auto focus faster than Nikon's version
Notes on Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- I have compared this lens with Nikon's version of the 55-200mm, and I find the auto focus of the Sigma lens to be faster and snappier than that of the Nikon lens. Also, in terms of sharpness of image, I can't tell the difference - seems to produce every bit as sharp and clear an image as the Nikon lens does - at a significantly lower cost! A good solid value for the going price.
Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- User Rating: Summary for Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- Sharpness High Price Low for this Lens
Notes on Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens ...- There are some that slam this lens and others that praise it. You have all heard the value of the 50mm 1.8 right? This Sigma lens is close to the same value as far as cost vs sharpness. It is not as fast as a 2.8 lens but it also is not as expensive. If you can afford it get a 2.8 lens but if not then this is the lens you want. It is very sharp but does become soft at outer edges
