Purchased as a one lens travel kit along with a Nikon Z6ii. The photos speak for themselves and all the attached photos are at 400mm. If your an ordinary amateur photographer and not a pro or photo journalist who all seem to poo poo this lens or compare it to the Nikon Z 100-400, the performance is great at any focal length but only in GOOD LIGHT. It's not a good low light performer and I don't believe it was designed to be and it shouldn't be compared to the Nikon Z 100-400 either which is in a different design, build & performance class. Controls are minimal, lockswitch and control ring but I didn't feel I needed any. Its a lot heavier than the Nikon Z 24-200 but I found I quickly got used to it. I think it's worth every penny I paid for it!