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Old Nov 29, 2005, 5:32 AM   #1
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Just bought the Canon 350D (Rebel XT), with 18-55mm lens. Is it better to get a 55-200 or a 18-200mm? Any recommendations on makes of lens?
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Old Nov 29, 2005, 11:59 AM   #2
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from a few experienced guys i have talked to... the Sigma 18-200 is a pretty good lens.. distortion is relatively low at about 1.2% and its a solid lens..
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Old Nov 29, 2005, 2:20 PM   #3
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FYI - http://www.sigmaphoto.com/news/news.asp?nID=3247
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Old Dec 1, 2005, 8:00 AM   #4
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One more vote for the Sigma 18-200.
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Old Dec 7, 2005, 9:31 AM   #5
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With the 18-200 you avoid having to change lenses. I think it's worth it for the shots you won't miss.

A word from a Sigma owner (12-24, 70-300, 50-500). I've read that Sigma's quality control is somewhat below par--yeah, a lot like Canon's, eh? I've also experienced Sigma failures. My 70-300 is remarkable. Possibly the best lens value I've ever seen. The 50-500 is also very good, although I had to send back the first one due to a wierd bokeh anomoly (looked like a mirror lens!). The 12-24 has been to Sigma once for calibration under warranty, but it is still not up to the best samples I've seen, and I'm using a 1.6 crop factor cam--I'll bet the corners are really soft if this were on a FF. And the softness is not even. The left is softer than the right.

I have no personal experience with Tamron, although a friend of mine swears by his Tamron 18-200. How's that for second hand, off-tht-cuff, heresay advice?

When you get that Sigma, put it through some careful testing at wide angle, telephoto, and halfway between. Shoot a good flat target--I like a brick wall--and shoot on a tripod using a cable release or timer, and check your focus very carefully. You might let it AF, then switch to manual to fine-tune. Shoot wide open and at F8 and F16. Study the results on the computer and also print if you can as large as possible. Don't be too hard on the wide open shots. None of the moderately priced lenses are perfect wide open. Find some good samples to compare your results to, if in doubt. If bad, send it back right away.


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Old Feb 12, 2006, 9:42 PM   #6
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Does the Sigma 18-200mm perform better than the 350D kit lens of 18-55mmfor the same focal range (18-55mm)? I am thinking of buying the Sigma as my main walkaround and maybe anyone out there that owns the two lenses can shed some light and maybe post some pics of shots taken with the kit lens and sigma from 18-55mm. Thanks in advance.
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Old Feb 12, 2006, 11:41 PM   #7
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I have the sigma 18-200, I like it and don't have enough experience to tell you which is better betwen the two (18-55), the kit lense is a very respectable lense, and a lot of people like it. I just figured when I got the 18-200, it will do the job of the kit lense and more. the Sigma 18-200 is known to be very good at wide angle and mid range and it loses the sharpness towards the 200mm.
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Old Feb 13, 2006, 1:49 AM   #8
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Did it effectively "replace" your kit lens? How do you rate it in the 18-55mm range? I know you said that you are not experienced enough but I just like you own opinion based on your personal experience if the Sigma performed just as well or better or worse than the kit lens. Thanks very much!
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Old Feb 13, 2006, 2:08 AM   #9
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ht770 wrote:
Quote:
I have the sigma 18-200, I like it and don't have enough experience to tell you which is better betwen the two (18-55), the kit lense is a very respectable lense, and a lot of people like it. I just figured when I got the 18-200, it will do the job of the kit lense and more. the Sigma 18-200 is known to be very good at wide angle and mid range and it loses the sharpness towards the 200mm.
The sharpness of Sigma 18-200 at full telephoto end has got mixed opinion. Here is one pic from a zoo at full telephoto end. Taken with XT and Sigma18-200. Comments and critiques are welcome.


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Old Feb 13, 2006, 3:40 AM   #10
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WOW That is sharp!! - was referring to both the picture and the teeth :G
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