Very good92/100
The price of 15,000 euros is hefty, but this is unfortunately typical for a fast 400 mm lens. Nikon has not only built in an image stabiliser, but also a 1.4x extender. This turns 2.8/400 mm into 4/560 mm. In the test, the 400 mm lens convinced with good resolution and high contrast at open aperture in the centre of the image...