D3100 Viewfinder Pentaprism Diagonal Eyepiece With Inside Finder LCD and Focusing Screen For Nikon D3100 Camera - AliExpress
Vello GSP-ND3100 Glass LCD Screen Protector for Nikon D3000, D3100 & D3200 | Vello
Nikon D3100 LCD display
dr ben on X: "Testing my old Nikon D3100, bought in 2011/12. Why does the screen corner darkened? I've tried with different subject. Same result. https://t.co/nZUzwGQwLK" / X