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drsrikanth2908
Joined: 23 Mar 2010
Posts: 1
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 Posted: Wed Mar 31, 2010 4:04 pm Post subject: regarding 150-500 sigma lenses for sony alpha |
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i hav sony alpha 100 dslr with 100-300 f/5.6 lens. i would like to use it for bird photography by using 2x teleconvter. i find the images too dark. can
u explain the setting ???
or do u recomend any other lenes for this purpose???
can u also guide me if i can buy 150-500 mmm sigma lens ??? will my camera work in autofocus with this lenes??/pls guide.
thank u
dr srikanth |
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Jayanth Sharma
Joined: 23 Feb 2006
Posts: 223
Location: Bangalore
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| Posted: Thu Apr 01, 2010 8:21 am Post subject: AF |
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It will work with AF if you dont use a TC. 2X TC on the 100-300 might not allow you to AF as the aperture is already 5.6
If your images are dark - then there could be a lot of reasons. Mail me a couple to jay@wildlifetimes.com so that I can understand clearly why.
_________________
Cheers,
Jayanth Sharma
jay@wildlifetimes.com |
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