300mm 2.8 AF: Sigma vs Pentax

Sun Aug 12 20:19:00 EDT 2007

----- Original Message ----- 
From: "syb vis"
Subject: 300mm 2.8 AF: Sigma vs Pentax

>I really love the 300mm (actually 450mm) focus distance on a dslr.
>
>

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help me

William Robb 