Watch this video to uncover how scientists use great white shark teeth to estimate their size, and how they apply similar techniques to the extinct megalodon. Learn about the challenges of determining ...
Digital Photography Review on MSN
What the heck does Di III VXD G2 mean on a Tamron lens?
Image: Tamron If you've ever taken a look at Tamron lenses, you've likely noticed a surprisingly long string of numbers and letters in the product name. Reading "Tamron 18-300mm F/3.5-6.3 Di III-A VC ...
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