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Sigma 18-200mm f 3.5-6.3 DC Lens for Canon Digital SLR Cameras

Sigma 18-200mm f 3.5-6.3 DC Lens for Canon Digital SLR Cameras by Sigma $339.95 At Amazon on 3-8-2012.

High zoom ratio 11:1 lens designed for Canon digital SLR cameras 18 to 200 mm focal length 2 Special Low Dispersion glass elements; 2 hybrid aspherical lenses Compact, lightweight construction Lens coating reduces flare and ghosting From the Manufacturer This high zoom ratio lens is exclusively designed for digital SLR cameras and capable of covering a wide range of focal lengths from wide-angle to telephoto. Two Special Low Dispersion (SLD) glass elements and two hybrid aspherical lenses offer the utmost correction for all types of aberrations, and enables this extended range super zoom lens to be housed in a compact and lightweight construction of 70 millimeter (2.8 inches) diameter, and 78.1 millimeters (3.1 inches) in length, and weighing just 405 grams / 14.3 ounces. The new lens coating reduces flare and ghost, which is a common problem of digital cameras and also creates an optimum color balance. This lens has a minimum focusing distance of 45 centimeters (17.7 inches) at all focal lengths and has maximum magnification of 1:4.4. The lens design incorporates an inner focusing system, which prevents the front of the lens from rotating, making it particularly suitable for using circular polarizing filters and petal shaped lens hoods. The overall length of the lens does not change during focusing, ensuring convenient handling and ease of use. A zoom lock switch eliminates 'zoom creep' during transportation, a convenient addition when traveling. Exclusively designed for use with digital Single Lens Reflex (SLR) cameras High zoom ratio 11:1 Compact and Lightweight construction with diameter of 70 millimeter (2.8 inches), length of 78.1 millimeters (3.1 inches) and weight of 405 grams / 14.3 ounces Minimum focusing distance of 45 centimeters (17.7 inches) at all focal lengths Note to customers: Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras. Reading reviews is a crap shoot. You know nothing about the reviewer or the use of the product. That said, I am assuming you are not a struggling professional trying to shoot a high quality, tight-budget job. You are a user looking for one lens to carry to cover a wide range of service.I'm a pro. I have a many bodies and L lenses to use.I carry an XSI with THIS Sigma 18-200mm non OS lens just about everywhere I go. It is a great vacation tool, where most pix are shown in a digital frame or are never going to be more than 4x6.Yes, the MTF is not great (simply: contrast across the lens), there is some chromatic fringing and watch out! the lens hood will cause vignetting and shadows with a flash at wide angle. I've been using this lens since it was released in early '05.It's a $300 lens. Does it compare to a $1500 L lens? Yeah - very badly. So what? The first rule of photography is get the picture. Missing the shot while changing lenses is not photography. Is this the preferred lens in my arsenal? No. But for general non-client, daylight, non-sports shooting, it's the one I'll probably be using. I prefer the non-optical stabilzed version - less complexity.To help you weigh this review: I use five professional (5D, 1D) and several prosumer (40D, 50D, XTI, XSI) bodies and nine L lenses, plus a slew of others.Photo tip: night shooting of foreground against backround (done a lot with this lens!): typical situation: girl on beach in front of sunset. Manually set exposure to flash shutter speed, aperature & ISO to get background. Turn flash on to expose and meter foreground. You'll get some great "how did you do that?" pix. All the MTF, abberetion and linearity issues will mean nothing, because you got a picture no one else could and th L doesn't really add anything, because you want depth of field here.Thanks for reading my review. Back To Top Sigma 18-200mm f 3.5-6.3 DC Lens for Canon Digital SLR Cameras Available from Amazon Price: $339.95 Updated on 3-8-2012.

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