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SpecialK · 09-30-2008, 10:58 PM

Many people rate the Tamron and Sigma 70-300's about equal in IQ. The Pentax 55-300 is noticeably better than the Sigma I had.

09-30-2008, 10:58 PM	#4
SpecialK Pentaxian Location: So California Gallery Photos: 1 Posts: 1,774	Many people rate the Tamron and Sigma 70-300's about equal in IQ. The Pentax 55-300 is noticeably better than the Sigma I had.