DxOMark has tested the new Tamron SP 150-600mm f/5-6.3 Di VC USD G2 lens for Canon EF mount. This lens is just released for several months ago. According to DxOMark, the score of this lens is a little lower than the old version. See the DxOMark score below:
Tamron Japan has just announced the updated version of their 150-600mm telephoto zoom lens: Tamron SP 150-600mm F/5-6.3 Di VC USD G2 Lens (B&H Photo Video, Adorama). Also announced two tele converters: Tele Converter 1.4x and Tele Converter 2.0x. The Canon mount and Nikon mount Tamron 150-600mm G2 Lens and tele converters will be released on September 23, 2016 in Japan. US price is $1,399, shipping on September 28.
Update: First image is now available.
Tamron will soon update their Tamron SP 150-600mm f/5-6.3 Di VC USD lens soon. The new version will be called Tamron SP 150-600mm f/5-6.3 Di VC USD G2 Lens.