I upgraded all my Nikon lenses to their top of the line products in 2021, including their f2.8 70-200, after years of great service from multiple older Nikon lenses. Photos were soft with the 70-200 (tack sharp with f2.8 17-55 and f4 180-400 TC), and in my autofocus fine adjustment testing, it required +18 to -2 at different focal lengths (20 adjustment gap), so I sent it in for servicing in Aug 2021. Received it back, tested it, and gap was down to 9 (not great), so I tried it on safari. 90% of photos were blurry throw aways, yet when I would switch to my f4 180-400 TC for the same scene, same focal length, pics were tack sharp. So, I sent the lens back to Nikon to service a second time, asking customer service to be SURE they tested AF throughly before sending it back. They sent it back saying it was all good, and when I tried it photos again were soft. I performed another test, and the adjustment gap across focal lengths was up to 27 (!). I called to ask for a replacement, and Nikon is stating they will test it again and send back if it tests well. My problem is, clearly Nikon’s testing is not picking up whatever is wrong with this lens. It never worked, and still is bad after two separate servicings as evidenced by simple autofocus testing. From reviews, clearly this is normally a great lens. I sent it back a 3rd time, imploring Nikon NOT to send it back a 3rd time, but rather replace it. That is where things stand today.
I spend a fortune (like everyone who does) to go on African safari a couple times a year, and simply cannot bear the thought of taking this lens only to have 90% of photos blurry throwaways again.
What do you experts think, or anyone experience something similar?
Given what I spend with Nikon, and given servicing has failed twice, I cannot comprehend how they would not replace it at this point……