This is quite interesting review also about the 600mm and 800mm. (jared polin pabbling warning for weak heart =) )
Aand here is the link https://youtu.be/jZMou9ei2yY
This is quite interesting review also about the 600mm and 800mm. (jared polin pabbling warning for weak heart =) )
Aand here is the link https://youtu.be/jZMou9ei2yY