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Old Nov 18, 2010, 11:45 AM   #1
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Default Canon 18-55 vs 17-85mm

Would the canon 17-85mm give me as good, or maybe better image quality in outside shooting?

I am looking for a little more reach, and the 17-85mm fits the range. Like I said, it would be more a walk around outdoor lens for me. The 18-55 works good for me, just looking for a little reach.

They seem to go for around $ 270 ish on ebay.
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Old Nov 18, 2010, 11:49 AM   #2
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The 17-85 is a better lens and better range, and since it is USM if focus faster. But there are better lens, at even more money like the 15-85. So the 17-85 is decent upgrade to the 18-55.
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Old Nov 18, 2010, 12:06 PM   #3
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Quote:
Originally Posted by shoturtle View Post
The 17-85 is a better lens and better range, and since it is USM if focus faster. But there are better lens, at even more money like the 15-85. So the 17-85 is decent upgrade to the 18-55.
Are there any other lens under $300 range(used) you would suggest?
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Old Nov 18, 2010, 1:09 PM   #4
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I would hesitate to call the Canon 17-85 better than the 18-55. Where their ranges overlap, it's got more distortion and vignetting, and it's not as sharp.



See:... or ...If all you want is a little extra range, that's a high price to pay.

If you're looking for something about as good but longer, the Sigma 17-70/2.8-4.5 is a good choice, but it's not stabilized, and the stabilized version isn't as good.
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Old Nov 18, 2010, 2:54 PM   #5
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I used that lens, it is built better, and has better AF,and CA is correct in camera if you choose that option.

I would not as concern with the distortion. In camera correction does good job.
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Old Nov 18, 2010, 5:04 PM   #6
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Quote:
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I used that lens, it is built better, and has better AF,and CA is correct in camera if you choose that option.

I would not as concern with the distortion. In camera correction does good job.
If you're talking about the Lens Peripheral Illumination Correction, Mark2009's XSi doesn't have that. And even if it did, distortion correction straightens lines, but at the cost of sharpness.
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Old Nov 18, 2010, 5:07 PM   #7
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Did not realized we are talking about the XSi, but the correction does work. I uses it on the T1i, and sharpness is not an issue.
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Old Nov 19, 2010, 3:45 AM   #8
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When the 17-85 was first released it was optically streets ahead of the 1st generation 18-55. I know because I used both lenses on my 20D circa 2005.

The current 18-55 IS however is a very sharp lens. And optically superior to the 17-85 over the common range. The build quality is far worse however, and so too is the AF speed and accuracy.

So the 17-85 is still an upgrade, just not as big a one as it used to be. The big upgrade is now to the excellent 15-85.

My personal inclination would be to keep the 18-55 and save up a little longer to get the 15-85.
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Old Nov 19, 2010, 6:36 AM   #9
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Quote:
Originally Posted by peripatetic View Post
When the 17-85 was first released it was optically streets ahead of the 1st generation 18-55. I know because I used both lenses on my 20D circa 2005.

The current 18-55 IS however is a very sharp lens. And optically superior to the 17-85 over the common range. The build quality is far worse however, and so too is the AF speed and accuracy.

So the 17-85 is still an upgrade, just not as big a one as it used to be. The big upgrade is now to the excellent 15-85.

My personal inclination would be to keep the 18-55 and save up a little longer to get the 15-85.
Thanks, that makes sense, and what I am going to do.....
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Old Nov 21, 2010, 1:03 AM   #10
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The wife's T1i came with the 18-55 lens, she used it a couple of times before taking my 17-85mm Canon lens.
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