Going to British Columbia in September to see grizzly bears and whales (hopefully birds also).
Need advice on lenses.
Taking 5d mkiv and 1Dx.
1.4x and 2.0x extenders.
Advice on following lenses required.
16-35 f4 IS or 24-105 f4 IS
70-200 f2.8 mk ii
400mm DO vi or 100-400 mk ii.
500mm f4 too heavy for flights so not considering.