jtra
Leading Member
My D750 started failing in similar way and then shutter broke completely at 12145 clicks, about 6 months of use.My wife's D750 just went back to Nikon due to a black shadow/bar/stripe across the lower 20% of the pictures (intermittently about 40% of the time for the past week or so). It previously went to Nikon a couple of months ago for the ERR message and refusal to focus. That time Nikon replaced the shutter mechanism and made various adjustments. I just checked her last photo before sending it off, and her shutter count was 109,000 in 13 months. She used CH a lot for bird photography. We'd never considered the shot count life of a shutter before.Good Lord! You average >400 photos a day? Do must shoot a lot of timelapses(?)I just checked the exif data. The final image I took tonight is number 300,9726. This D800 was purchased in May of 2013.
See details here https://www.dpreview.com/forums/thread/4037492
I entered my count at shutter life DB here https://olegkikin.com/shutterlife/
you can use it to get idea about shutter life distribution.