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12-07-2009, 11:48 AM   #1
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Quantaray 70-300mm LD Tele-Macro?

I've heard this is the Tamron 70-300 lens rebadged. Is that true? Its so confusing figuring out which lens is which with all the older models of the same lens and different brands of the same lens.

12-07-2009, 06:23 PM   #2
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Ritz put the Quantaray name on whatever they could get their hands on. Some of th Quantray 70-300's are made by Tamron, others are made by Sigma. One good test is the filter size - Tamron 70-300's generally use 62mm fitlers, Sigma something else (I forget which). I have no idea if that's a foolproof way to tell, but hunt around for pictures of various Tamron and Sigma 70-300's over the years, and chances are one will jump out as being "obviously" the same.
12-07-2009, 09:55 PM   #3
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QuoteOriginally posted by Marc Sabatella Quote
Ritz put the Quantaray name on whatever they could get their hands on. Some of th Quantray 70-300's are made by Tamron, others are made by Sigma. One good test is the filter size - Tamron 70-300's generally use 62mm fitlers, Sigma something else (I forget which). I have no idea if that's a foolproof way to tell, but hunt around for pictures of various Tamron and Sigma 70-300's over the years, and chances are one will jump out as being "obviously" the same.
Sigma's filter size is 58mm
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