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| 01-17-2009, 10:05 PM | #1 |
| Is Lens without SDM AF more noisier? | |
| 01-17-2009, 10:52 PM | #2 |
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I believe all lenses for Pentax are either SDM/HSM which will be quiet or driven by the screw-drive from the camera body which is significantly louder. Third party and Pentax brand screw-drive lenses seem fairly similar to me, but there is a lot of variability in the noise from different screw drive lenses, so some are louder than others. SDM lenses are very quiet! Manual Focus lenses are quite quiet too  .
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| af, k-mount, lens, pentax lens, sdm, sdm af, slr lens |
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