Sigma 18-200mm f/3.5-6.3 DC Lens for Pentax and Samsung Digital SLR Cameras
- High zoom ratio (11:1) lens designed for Pentax 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
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 lensesoffer 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 70mm (2.8″) diameter, and 78.1mm (3.1″) in length, and weighing just 405g/14.3oz. 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 45cm (17.7″) 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 fo
List Price: $ 279.00
Price: $ 279.00
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Great Lens for the Price!,
I disagree with the previous poster. I think this lens is pretty great.
The quality is exceptional for a lens of this price and range.
There seems to be a controversy regarding how focal lengths of lenses are measured; from what I’ve read, the lens does go to 200mm if measured at infinity.
In the real world, the lens takes fine pics as long as you have enough light. The size and weight is perfect for a walk-around lens. My Rebel XT with this lens (and the Hakuba hand grip) is a perfect fit, and feels great to carry around and shoot. To get better optical quality at this range, you would need to get a few lenses that each cost a lot more. There is nothing quite like this, except for Tamaron’s 18-200, which I hear doesn’t compare favorably to the Sigma.
It seems that Sigma has quality control issues, so I would buy
the lens from a local dealer that has a return policy. Test the lens, and if you don’t think it’s up to par, return it for another.
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Good utility lens,
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 4×6.
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.
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