I assume you are referring to a Tamron lens. In that case, SP stands for
"Super Performance" and is (or was) their top line of lenses. It
includes prime, macro and zoom lenses. The Tokina equivalent is AT-X.
Moose
John Cwiklinski wrote:
>My mind has gone blank, due to CRS syndrome (see acronymsearch.com for
>definition). Therefore, what does the SP stand for in a SP macro lens?
>Thanks.
>
>John Cwiklinski
>
>
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