09-07-2017 03:25 PM
With the Tamron. I estimate a focal length of around 196mm at the 200mm setting when focused at infinity, 188mm at a focus distance of 10m and at 2m the focal length is reduced to around 140mm. The Nikon AF-S 70-200mm F/2.8G ED VR II shows this effect quite strongly, and is greater than the Tamron lens.
The Nikkor 70-200mm f/2.8G ED VR II Lens is $2100 and the Tamron SP 70-200mm f/2.8 Di VC USD G2 is $1300. I don't have the G2 but I understand it has significantly less focus breathing than its predecessor. If you own Brand-N the choice should be obivious. If you own Canon there is no choice. You have the best lens made in the 70-200mm range at your finger tips!