Forum: Pentax SLR Lens Discussion
11-29-2011, 12:57 PM
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HS gyms are pretty small, so I think either the 135 or 150 would be more than enough. If the lighting is up to it step down to 4.0 (for extra sharpness) and crank up the ISO with your K-5. With any half decent noise removal software such as the one that comes with LR3, don't be afraid to shoot at ISO 6400.
So to answer your question either the Pentax or Sigma would do the trick. For sports, go with a zoom.
The weak link will be the K-5s pedestrian AF speed, so try to anticipate as much as possible and pre-focus.
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