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Forum: Pentax DSLR Discussion
09-27-2008, 07:45 AM
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forget the sigma zoom 50-500. Why? Look at the aperture of the lens. It's f6.3. Way too slow. And at 50mm - imagine taking a photo at 50mm f6.3 - yuck!
Look for something second hand at f5.6 or f4.
A pentax 500mm f5 or f4.5 in M42 mount can be found for a few hundres dollars. But really, you can't shoot good photos from the stand - even if you had a 600mm, f4.
Otherwise, if on a budget, maybe try a tokina 80-400, f5.6.
Faster lenses are always better, even if shorter focal lengths - then just try and get closer. But slow is slow wherever you are.
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