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Old 19th of March 2007 (Mon)   #1
Tony-S
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Default Sigma 18-200mm F3.5-6.3 DC

I bought this lens as a result of seeing images posted on the forum as a travel lens. I had a chance to try it out over the weekend on a drive through the San Jaun mountains of southwest Colorado. It needs to be stopped down to at least f/5.6 to 8 and at the long end it needs f/11 or more. I avoid using it past 180mm as it becomes unacceptably soft for me. It's really an outdoor lens (or flash), but does provide very nice images if used within these limits.

Here's a shot from Durango, CO and a 100% crop at 33mm and f/8. (Compression for the forum is causing some pixelation issues.)
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File Type: jpg durango 2.jpg (85.9 KB, 1535 views)
File Type: jpg durango2crop.jpg (92.3 KB, 1522 views)
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Last edited by Tony-S : 26th of July 2007 (Thu) at 21:45. Reason: Deleted reference to being less than 200mm
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Old 19th of March 2007 (Mon)   #2
Tony-S
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Default Re: Sigma 18-200 (non-OS)

A couple more. First at f/8, 160mm, second at f/8, 21mm.
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File Type: jpg durango 1.jpg (97.0 KB, 1509 views)
File Type: jpg durango 4.jpg (91.4 KB, 1493 views)
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Old 21st of March 2007 (Wed)   #3
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Default Re: Sigma 18-200 (non-OS)

Great lens for what it is. Mine is just a tad soft at 200MM but from 175 down it is real sharp.

Heres one for the macro crowd. Shot at 1/320 F 6.3 at 105MM
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File Type: jpg _MG_6853-w.jpg (84.0 KB, 1454 views)
File Type: jpg _MG_6853-100%-crop.jpg (99.3 KB, 1453 views)
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Old 21st of March 2007 (Wed)   #4
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Default Re: Sigma 18-200 (non-OS)

Another for the landscape crowd. 18 MM f6.3 1/320
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File Type: jpg _MG_6793-w.jpg (95.5 KB, 1439 views)
File Type: jpg _MG_6792-E8-100%-crop-.jpg (99.9 KB, 1429 views)
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Old 21st of March 2007 (Wed)   #5
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Default Re: Sigma 18-200 (non-OS)

This one at least focuses better than my EF50F1.8 and it is ok for what it is designed to do .

I shot some flowers with it several days back and I like it more than I thought I would.
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Old 21st of March 2007 (Wed)   #6
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Default Re: Sigma 18-200 (non-OS)

Oh link to my stupid shots here.

http://www.flickr.com/photos/izumiflowers/422518518/
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Old 22nd of March 2007 (Thu)   #7
Tony-S
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Default Re: Sigma 18-200 (non-OS)

OK, I've changed my opinion about its softness at 200mm. I think the softness in previous shots was because it was slightly out of focus. It appears my copy of this lens has a bit of trouble locking on focus at 200mm, perhaps because of the f/6.3 aperture. By focussing and then refocussing, it does a much better job of locking on the target. Of course, this means it's not going to be much good as a sports lens (or even for chasing kids around), but it does make it suitable as a travel lens, which is why I bought the thing in the first place.

I'm off to Chile Saturday for a week; I feel a lot better about taking this and leaving the 17-70 at home.

Here's a full-frame shot at f/8 and a 100% crop.
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File Type: jpg sig18-200.jpg (97.7 KB, 1385 views)
File Type: jpg sig18-200crop.jpg (86.7 KB, 1371 views)
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Last edited by Tony-S : 22nd of March 2007 (Thu) at 23:25.
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Old 23rd of March 2007 (Fri)   #8
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Default Re: Sigma 18-200 (non-OS)

JEEZ that's looking good to me!


See I'm keen on this lens, but then all the 'bad press' scares me off, and then great pics like the ones in this thread bring me right back!

It's going to be between this or the sigma 70-300 DG APO
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Old 23rd of March 2007 (Fri)   #9
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Default Re: Sigma 18-200 (non-OS)

I like the lens, but I grew out if it real fast. For the money it is great. Then I went to the 24-105 and cannot believe the different....
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Old 24th of March 2007 (Sat)   #10
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Default Re: Sigma 18-200 (non-OS)

I bought this lens about a year and a half ago to replace my kit lens. I have been reasonably happy with the results. When used correctly, this lens can really produce.

Here are some pictures of St. Basil's Cathedral in the Red Square in Moscow.

None of the images have been processed other than being resized. They are straight out of the camera.

48mm f/9.0 1/250 ISO 200


106mm f/9.0 1/250 ISO 200


200mm f/11.0 1/125 ISO 200



And one of a man blowing his own trumpet!

200mm f/16 1/100 ISO 200
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Old 24th of March 2007 (Sat)   #11
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Default Re: Sigma 18-200 (non-OS)

Goodness, really great pics man!


Ok, it is between this and the sigma 55-200 for me. Of course the 18-200 has that killer range--- but is it worth it to pay twice as much for it!!?
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Old 24th of June 2007 (Sun)   #12
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Default Re: Sigma 18-200 (non-OS)

What to buy
I have a 11-18 tamron a 90mm 1:1 Tamron macro a 75-300 canon and nifty fifty canon but i feel i lack a good walk around lens with indoor capabilities...
Am i looking for the 18-200 f3.5-6.3 or the 17-70 f2.8 ?
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Old 25th of June 2007 (Mon)   #13
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Default Re: Sigma 18-200 (non-OS)

the 1770 is not a constant 2.8. i believe it is 2.8~4.5.
i think the 1770 will give you better images, but cant beat the convenience of the 18-200.
what is it that you really need?
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Old 25th of June 2007 (Mon)   #14
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Default Re: Sigma 18-200 (non-OS)

Well thats my dilemma...
I don't know i must research more but i think i will go the 17-70.
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Old 25th of June 2007 (Mon)   #15
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Default Re: Sigma 18-200 (non-OS)

Looks good to me. I'm considering the OS version because I moronically lugged everything I owned around at Disney (2 XTs & Grips, Bigma, Kit lens, 24-70L, 2 flashes, etc) just to "get everything" when I coulda done just fine with an all in one lens. Nothing was printed bigger than 4x6 anyway.

Sometimes a simple 10D + 18-200 OS kit would be a lovely thing.
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