Sigma 17-70mm F2.8-4 DC Macro OS HSM's Videos test

Sigma 17-70mm F2.8-4 DC Macro OS HSM: Videos, Tests, and Unboxings by YouTubers

Here are the videos found on youtube on the tests or unboxing of Sigma 17-70mm F2.8-4 DC Macro OS HSM. These videos often make it possible to better judge the product according to its criteria.