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Date of Launch
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For Canon ;

 2008 / 4 / 3*

For Nikon ;

 2008 / 5 / 30*

For Pentax, Sony  ; 2008 / 9 / 20*

For Nikon ; ******
For Sony ; ******
For Pentax ; ******
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  * Date of launch in Japan

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Tamron Announces the Launch of AF28-300mm F/3.5-6.3 Di VC in Japan
The Compatibility of 28-300mm Di VC for Canon
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The Compatibility of 70-200mm Di for Nikon [May 29, 2008]
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Notice of ***
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