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Help in buying a Macro Lens
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<blockquote data-quote="WayneF" data-source="post: 323490" data-attributes="member: 12496"><p>The specs in your Adorama link says FOCUSING DISTANCE is 11.4 inches at 1:1. This is measured to the image plane at the rear of the camera body. The body thickness and lens length is a factor in front of that.</p><p></p><p>This link <a href="http://www.jeffree.co.uk/pages/macro-lens-calcs.html" target="_blank">Macro lens calculations</a></p><p></p><p>says the Tamron 90mm macro has a WORKING DISTANCE (in front of lens) of 95 mm at 1:1, which is 3.75 inches. Sort of how it works...</p><p></p><p>Which is about an inch more than a 60mm, and a couple inches less than a 105mm.</p></blockquote><p></p>
[QUOTE="WayneF, post: 323490, member: 12496"] The specs in your Adorama link says FOCUSING DISTANCE is 11.4 inches at 1:1. This is measured to the image plane at the rear of the camera body. The body thickness and lens length is a factor in front of that. This link [URL="http://www.jeffree.co.uk/pages/macro-lens-calcs.html"]Macro lens calculations[/URL] says the Tamron 90mm macro has a WORKING DISTANCE (in front of lens) of 95 mm at 1:1, which is 3.75 inches. Sort of how it works... Which is about an inch more than a 60mm, and a couple inches less than a 105mm. [/QUOTE]
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