Last Updated: Review by PhotoReview.au (02 October’07)

Sigma 18-200mm F3.5-6.3 DC is exclusively designed for use with digital SLR cameras featuring APS-C size image sensor. It’s a Compact, Lightweight and Durable construction lens with diameter of 70mm (2.8″), length of 78.1mm (3.1″) and weight of 405g./14.3oz. The lens is featuring two Special Low Dispersion (SLD) glass elements and two hybrid aspherical lenses offer the utmost correction for all types of aberrations, new lens coating to reduce flare and ghost, which is a common problem of digital cameras and also creates an optimum color balance.

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Sigma 18-200mm Reviews

PhotoReview.au reviews the Sigma 18-200mm F3.5-6.3 DC and wrotis;
“Bokeh was pleasing with wide lens apertures, especially at longer focal length settings. Flare was common - and quite obvious - in shots taken with the lens pointed towards the sun, even though the sun was well out of the shot. However, backlit subjects were handled reasonably well when the front element of the lens was totally shaded.”
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DPExpert reviews the Sigma 18-200mm F3.5-6.3 DC and wrotis;
“Like: Construction quality is good and the lens is amazingly compact. The zoom mechanism has sufficient friction that the lens doesn’t slide out when it is held vertically which is an annoying tendency in some kit zooms. Dislike: The slow focus and the warm colour. Verdict: There is an objective scientific review of this lens on the German fotozone site. Their conclusion is that the lens involves the compromises to be expected in such an ambitious zoom range in such an inexpensive lens. ”

CameraLabs reviews the Sigma 18-200mm F3.5-6.3 DC and writes;
“So an 18-200mm could be the ideal lens for you, but since the Sigma and Tamron models essentially cost the same, which one should you go for? Ultimately there’s not a great deal between the Sigma and Tamron 18-200mm lenses. A couple of our results favoured one over the other, but neither took a decisive lead overall…. In terms of our results, it also took the lead in corner sharpness and vignetting at wide angle, although the macro reproduction was less impressive.”
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TheObiJuan, a DCRP forum member, reviewed the Sigma 18-200mm F3.5-6.3 DC and wrote;
“The sigma 18-200 is just as good as the sigma 18-125 and better in many aspects. I especially love the minimal vignetting. The sigma has better build quality and even a metal lens mount.”

Photozone reviews the Sigma 18-200mm F3.5-6.3 DC and writes;
“There’s no such thing as a free lunch in lens land and the Sigma AF 18-200mm f/3.5-6.3 DC is no exception here. The resolution figures are generally quite decent and regarding the extreme zoom range you may accept the very pronounced distortions present throughout the zoom range as well as a few other shortcomings. Unfortunately the AF accuracy leaves something to be desired with this lens especially towards the long end of the zoom range - at least on the EOS 350D. Typically such a type of lens is used by beginners on entry level DSLRs where a rather dark viewfinder combined and an average AF system don’t really help here. “

SLRGear reviews the Sigma 18-200mm F3.5-6.3 DC and writes;
“Chromatic aberration in this lens is high at both ends of the zoom range (wide and telephoto), but is relatively low over a range of medium focal lengths. Vignetting is moderate to low, with a maximum of about 1/2 stop at wide angle and maximum aperture. Stopped down to f/5.6, it’s never more than 1/4 stop at focal lengths of 88mm and below, only slightly higher at telephoto focal lengths, and often quite a bit lower. Distortion covers quite a range, from about 1% barrel at 18mm, to about 0.6% pincushion at 50mm, finally decreasing to about 0.4% at 200mm. (Interestingly, all three lenses in this competitive group show nearly identical distortion behavior.)”

Wsandman1, a Steve’s forum member, reviewed the Sigma 18-200mm F3.5-6.3 DC and wrote;
“First impressions is that it’s definitely not an L lense or EX lense in terms of build. It’s amazingly compact for it’s zoom factor. It’s quite noisy compared to HSM or USM lenses. It also a bit slow in low light conditions. I’ll take a few portraits with it during an upcoming event and compare it with some shots taken with the 70 - 200 F4 L and the Sigma 28 - 70 F2.8 EX.”

Brad M. Cassagne, an Amazon customer, reviewed the Sigma 18-200mm F3.5-6.3 DC and wrote;
“I love this lens. Let me say that I’m writing this from a amature/enthusiast point of view. I’m not a professional photographer. I’ve tried a lot of digital cameras, though, and this lens is certainly better than any of the Non-SLR cameras with this kind of zoom range. I guess if you’re a pro you can see some imperfections but I can’t find them.Some people have said that the autofocus is slow and noisy but I’ve found it to be just a little bit slower and noiser than the OEM Canon lens. It’s certainly not a problem to me. The only time I notice the noise is when I’m trying to take candid pictures, and then the shutter click is almost as loud anyway.”

Sigma 18-200mm Sample Photos

- Sigma 18-200mm F3.5-6.3 DC Sample Photos posted @ Pbase
- Sigma 18-200mm F3.5-6.3 DC Sample Photos posted @ Flickr
- Sigma 18-200mm F3.5-6.3 DC Sample Photos posted @ CameraLabs
- Sigma 18-200mm F3.5-6.3 DC Sample Photos posted @ Pixagogo
- Sigma 18-200mm F3.5-6.3 DC Sample Photos posted @ Pbase

Sigma 18-200mm Discussions

- Sigma vs Tamron 18-200
- Sigma 18-200, Tamron 18-200 or Tokina 24-200

Sigma 18-200mm Specifications

• Focal Length :18-200mm
• Minimum Aperture :F22
• Lens Construction :15 Elements in 13 Groups
• Angle of View :76.3degree- 8.1degree
• Number of Diaphragm Blades :7pcs
• Minimum Focusing Distance :45cm (17.7in)
• Maximum Magnification :1:4.4
• Filter Size :62mm
• Lens Hood : Petal Hood
• Dimensions :Diameter 70mm (2.8in) x Length 77.6mm (3.1in)
• Weight :390gr/13.8oz

More Info is available on Sigma 18-200mm F3.5-6.3 DC Official Website

See also: Lens Reviews | Sigma Lenses

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