Tamron SP 90mm f/2.5 Macro is Super!

Started May 8, 2012 | Discussions thread
Lng0004
Senior MemberPosts: 2,602
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Re: Tamron SP 90mm f/2.5 Macro is Super!
In reply to Bill McClung, May 8, 2012

What's the focusing distance to get 1:1? And what's the magnification ratio without the extension tube?

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