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Old Oct 24, 2004, 8:41 AM   #1
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Can any one give me idea about the performance of Sigma170-500lens
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Old Oct 24, 2004, 8:55 AM   #2
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This is a nice link that NHL left in another thread.
http://www.photozone.de/2Equipment/easytxt.htm#Ztelel

I dont know anyone thats got that particular lense. I would recommend saving the extra bit for the 50-500 though.
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Old Oct 24, 2004, 9:08 AM   #3
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The Sigma 170-500 is an older lens with no 'HSM'.
IMO Mealers is correct and you'll be better off with the Sigma 50-500 which has the HSM instead, albeit with a slighly higher weight because of the extra elements

The ultrasonic HSM drive is much quicker in AutoFocus as well as its silent operation. It also allows you to quickly fine tune the AF by just twisting the focusing ring without having to flip the AF/M manual switch first...


:idea: An another alternative is the Sigma 100-300 f/4, this is an exceptional lens @ 300 which you can marry with the 1.4x TC.
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Old Oct 26, 2004, 1:45 PM   #4
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Hello NHL, I went to BHphotovideo.com and was looking at the Sigma 100-300 lens. There are two listed F/4.0 EX IF HSM @$899.00 or F4.5-6.7 DL Autofocus @$129.00, which one were you refering too?
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Old Oct 26, 2004, 10:19 PM   #5
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The f/4 EX with 'HSM':
http://www.naturephotographers.net/je1001-2.html

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Old Nov 1, 2004, 11:08 PM   #6
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I've shot a couple of thousand pictures with the 170-500 I bought last year, and while it is not great in low light situations, it is terrific for wildlinfe shots in the great outdoors. Be sure to get at least a monopod to steady this lens, which is susceptible to shake because of its long focal length. I think if you can get a good deal on this discontinued line, it would be a real score. I'm attaching a photo. JPEG image quality very low to get this onto the board. Hope this helps.
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Old Dec 1, 2004, 11:02 PM   #7
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I used mine at the "Brickyard 400". I was extremely happy with the results, which were better than anticipated. All my shots were handheld because my situation did not allow for a monopod or tripod. It was a sunny day, so I was able to use fast shutter speeds to compensate for movement. I was using a Digital Rebel which has recently been replaced by a 10D & 20D.
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