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Sigma Zoom lens for XL2 aperture question

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iMan
Sigma Zoom lens for XL2 aperture question
by
on May 1, 2006 at 9:13:04 pm

I'm thinking of buying a Sigma (Nikon too expensive and Sigma top range just as good) zoom lens to put on Canon XL2. I have a Nikon mount, which enables me to put Nikon stills photographic lenses on XL2.

I'm in two minds as two which one to get. Both are 100-300 zoom lenses, only one is F2.8, the other F4, the latter is half the price. Due to the fact that the effective focal length is increased by 6.7x, will I need the extra F-stop or should I just go for the F4 version?


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David Jones
Re: Sigma Zoom lens for XL2 aperture question
on May 2, 2006 at 12:46:53 pm

How will you be using the 670-2010?



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iMan
Re: Sigma Zoom lens for XL2 aperture question
by
on May 2, 2006 at 4:26:16 pm

Wildlife videography. Filming Osprays from 600 meters away for example.


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David Jones
Re: Sigma Zoom lens for XL2 aperture question
on May 2, 2006 at 5:02:11 pm

Then the 2.8!



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iMan
Re: Sigma Zoom lens for XL2 aperture question
by
on May 2, 2006 at 5:13:01 pm

And the reasons?


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