Tamron 150-600 G2
Wow, kudos to Tamron, the new updated lens looks very impressive. Some things I have noticed from the press release..
Updated optics with 3 LD elements
MFD is now closer to 7 feet for 1:3.9 Mag
3 VC modes with 4.5 stops claim
Better weather resistance
Flourine coating on front element
Better MTF at 600mm
"E" diaphragm for Nikon
They also introduced new TC 1.4 and 2x not sure why you would want to use them with this lens though..
SP 150-600mm F/5-6.3 Di VC USD G2
This might be the new king of the xxx-xxx lenses. Can't wait to see some tests. I got some pretty amazing images with the first version and would love to compare IQ to the big primes..
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