20-50mm has a loud/grinding focus motor?

Started Mar 26, 2012 | Discussions thread
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elai
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20-50mm has a loud/grinding focus motor?
Mar 26, 2012

I'm wondering if anyone has a problem where the focus motor is louder compared to the 30mm and 20mm pancake lenses and focuses slower. It almost has a grinding sound to it.

I don't want to submit the lens for a warranty repair and they return it saying there is no problem with it.

 elai's gear list:elai's gear list
Panasonic Lumix DMC-TS5 Nikon D600 Tamron AF 28-75mm F/2.8 XR Di LD Aspherical (IF) Tamron SP 70-300mm F/4-5.6 Di VC USD Nikon AF-S Nikkor 50mm f/1.8G +1 more
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