If you consider buying an expensive lens like the $12,000 Nikon 180-400mm f/4 TC 1.4, you will find useful to read actual field tests (and not only the usual read-the-specs reviews that most web sites will provide). So, I found to welcome field tests that I’d like to recommend:
- Petapixel’s A Field Test of the $12,400 Nikon 180-400mm f/4 TC1.4
- And the even better Shooting polar bears with the $12,000 Nikon 180-400mm F4E TC1.4 FL ED VR
Such a beast of lens is not for everybody, but you can’t beat reading real-world testing.