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03-27-2009, 11:25 AM   #1
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Join Date: Mar 2009
Posts: 10
telphoto for birds

hello all
i have pentax k100d (but i will probably upgrade sometime soon)
i am looking for a telephoto lens for capturing wildlife(especially birds).
so far as i can see i came down to this to options:
sigma 50-500
or the
pentax 300mm f4+tc 1.4

how is the pentax +tc,will the af works? will the quality be as good as the same mm in the bigma?

are there any other options for me in the range of 1000$?

thanks alot

03-27-2009, 12:18 PM   #2
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Join Date: Dec 2008
Location: Grand Rapids, MI. USA. Earth.
Posts: 139
Sigma also makes 150-500 and 170-500 zooms. If you're using it primarily for birds you probably don't need anything shorter than that anyway.
03-27-2009, 12:43 PM   #3
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Location: chicago burbs
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sigma 100-300mm f4 is a good choice
03-27-2009, 01:00 PM   #4
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
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there is another similar thread running, here is a link to my response


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