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Sigma 18-200mm f/3.5-6.3 DC Auto Focus OS (Optical Stabilizer) Zoom Lens for Canon Digital SLR Cameras
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- 18-200mm focal length
- 27-300mm equivalent focal length on APS-C cameras, 28.8-320mm equivalent focal length on Canon APS-C cameras
- F3.5-6.3 maximum aperture; F22-40 minimum
- Micromotor-type AF motor without full-time manual focusing
- Image stabilization, Auto panning detection
- 72mm filters
- 0.45m/17.72" minimum focus
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Canon EF-S 18-200mm f/3.5-5.6 IS Standard Zoom Lens for Canon DSLR Cameras
|Shipping||—||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||Available from these sellers||Photo Savings||Beach Camera Same Day Shipping||Digital Goja||Amazon.com|
|Compatible Camera Mount||Canon EF||Canon EF-S||Canon EF-S||Canon EF-S||Canon EF-S|
|Focus Type||Micro-type ultrasonic||Ultrasonic||Auto/Manual||Micro-type ultrasonic||Micromotor|
|Item Dimensions||3.11 x 3.86 x 3.11 in||2.8 x 3.39 x 2.8 in||3.1 x 3.1 x 4 in||2.91 x 3.5 x 2.91 in||3.11 x 4.02 x 3.11 in|
|Item Weight||1.32 lbs||0.95 lb||1.39 lbs||1.04 lbs||0.81 lb|
|Lens Type||Zoom lens||Zoom lens||Multi-purpose||Zoom lens||standard-zoom|
|Maximum Focal Length||200 millimeters||200 millimeters||250 millimeters||250 millimeters||200 millimeters|
|Minimum Focal Length||18 millimeters||18 millimeters||18 millimeters||18 millimeters||18 millimeters|
|Photo Filter Thread Size||72 millimeters||62 millimeters||—||62 millimeters||72 millimeters|
11.1x high zoom ratio lens with a built-in AF motor allowing auto focus with all Nikon APS-C DSLR cameras.
Top customer reviews
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The good news which I really didn't expect was to see both lenses produce images that were nearly identical-- I thought for sure Canon's optics would far surpass Sigma's. Color saturation, light exposure through the lens, and detail were indistinguishable. The autofocus worked equally well on both. Both weighed about the same and were about the same size. The Sigma has a 72mm diameter aperture which I liked (so does the Canon). Of course the Sigma is 18-200, and at this time Canon does not have a competing option in the same digital SLR lens class with image stabilization.
The only aspect of the Sigma that differed significantly from Canon's lens was the noise of Sigma's autofocus motor. Sigma produces noticeable motor noise, though it wasn't overly loud. Still if you were shooting in a spot where silence was critical such as a ceremony, it may become an issue but probably not. In comparison, the Canon autofocus motor is silent and fast every time.
Sigma places a locking mechanism on the lens barrel to eliminate any possibility of lens creep (lens extending when pointed down). I doubt this would be a problem with the Sigma anyway. The zoom ring is a little stiff, but not too stiff. The manual focus ring is designed to be used with AF set to off to avoid manipulating the motor when focusing.
The image stabilization works well allowing you to shoot lower light photos without a tripod. I was quite satisfied with Sigma's newest effort here.
I'd say this Sigma makes a great choice for amateur photographers like us looking for a single lens option on Canon digital SLR cameras. The only dissuading factor 'might' be the motor noise if you hope to match Canon's silent motor system. Until Canon produces the same class of lens at a competitive price, Sigma has this round sown up.
UPDATE: "LENS CREEP" September 18, 2007
We did just notice the Sigma lens starting creep for the first time (extend while pointed down). So apparently while the zoom mechanism starts off stiff enough to hold the lens in position, over time it will loosen up enough to move on its own with gravity assisting. Still love the lens though.
[I've used the lens with a Canon 7D, and have encountered no issues with the combination]
I've taken about 2000 photos with it since purchasing it about 2 months ago. And the results have mostly very good. Keeping in mind that my intent was to have a small lens that could take my vacation snapshots. For that situation, I really want something that consistently focuses pictures, that has effective anti-shake capabilities.
So I used this indoors, outdoors, with almost no light, in broad daylight, in caves, pretty much everywhere. Here are my observations:
1) In general, the lens handled nicely. As you zoom in/out, the lens is not as smooth as more expensive lenses (not a big deal), however, the zoom mechanism is like a telescope and as it engages the next "section" you have to get past a "notch". This is a bit of trouble if you're shooting movies with it as you cannot do a smooth zoom. For still pictures, it is not an issue
2) The anti-shake works pretty well. I hand-held shots in caves and they mostly came out very sharp.
3) In broad daylight, you get mostly in-focus shots, however, as I went through my pictures, there were times when taking pictures in broad daylight that were out of focus. Not consistently, but about 5-10 out of 500 where you think "How could the lens mess that up?". I don't have an answer for why; I have to conclude the focus is slow
4) Its a light lens. Good thing, the 7D is very heavy
5) At the ends of the zoom ranges, the pictures are dead on in terms distortion. In between, there are a few oddities. I frankly don't care about that. I'll use a different lens for those times.
6) I used it at races in bright sunlight, and I was able to get consistently sharp pictures of motorcycles traveling at extremely high rates of speed.
Overall I like it because it take pretty good pictures, great zoom range, light, and inexpensive enough that I'm not worried about the lens being damaged.
I considered the Canon in the same zoom range, but based on reviews, this lens is similar in performance and is about $250 cheaper. That's significant in this price range.