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Old Mar 15, 2006, 12:10 AM   #1
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Hello,

Does anyone know if the mounting ring on the EF-S 17-85 IS USM lens is made of metal or plastic? tx
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Old Mar 15, 2006, 7:31 AM   #2
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Why worrying about the mounting ring?

How often does one take a lens On/Off?
Things that tend to wear out more often are stuff that are used a lot like focusing or zooming parts that rub against one another...

-> ... and why professional lenses are made out of metal :idea:
(also heavy lenses need sturdy mount not light lenses... they don't break off)
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