Excellent lens extremely sharp and very quick to focus, even in dull lighting conditions.
Firstly let me say firstly Cotsworldcameras are first class, for service and are excellent communicators. Now the Lens - this is the second Z lens I've purchased, and I'm a Press Photographer with a National Newspaper so quality and speed are essential. I've hand held the Nikon Z 100mm - 400mm at 1/80 panning (racing car) and I've got crystal sharp images, and I've use it on stage at a cookery demo at 1/60 and I can say WOW sharp and very quick to focus I'm delighted with the lens, I did look at the Z 180-600mm f/5.6-6.3 but its too slow the 100 - 400 is just the right fit its very well built. I used it on my Z9.