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Pentax 28 - 105 /3.2 - 4.5
Just curious, I own the other version of this lens: the FA 28-105/3.2 - 4.5. How is this one different from the 4 - 5.6, optically? is the 3.2-4.5 also a rebadged Tamron as well, or its an altogether different lens from the above?
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