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Forum: Pentax SLR Lens Discussion
11-06-2007, 08:14 AM
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This is an interesting discussion. I've just gotten a K100d, and have these lenses so far:
The kit 18-55, a Pentax FA 80-200 f4.7-5.6, an SMC-A 28 f2.8, and a SMC-A 35-70mm f3.5.
The only lens I have used a lot is the 80-200 zoom, photographing my grandson's soccer games, and "sneak shots" while there of people and animals. I have been VERY impressed with that lens, which is even more wonderful since I paid $60 for it brand new at Wolf/Ritz!
I would like to get a longer lens for bird photography. I'm thinking something around 300mm might work well, and I thought a prime would make sense; lighter, less expensive, and probably have better quality than a zoom? But now I'm reading about Tamron and especially the Sigma 70-400mm DG AF zoom that sell for well under $200! And a prime can cost up to 10 times that amount? I know the prime probably is "better" than the zoom, but for a non-professional I'm not sure I'd ever see the difference.
I guess what I'm wondering is can the Sigma (above) really be that good? For a non-professional? And do you experienced folks here think a 300mm would be appropriate for "birding"? Oh, can anyone rate the Sigma (above) to the Pentax 80-200 (also above). I love what I've seen with that Pentax, but if the Sigma can do about the same, I'll reluctantly sell the Pentax.
Thanks.
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