Using the Monitor Instead of the Viewfinder on Your Nikon D3100 - dummies
Amazon.com: For Nikon D3100 D3200 D3300 D3400 D3500 D3600 Tempered Glass 9H 2.5D Camera LCD Screen Protector Film Guard (2 Packs,D3100 D3200 D3300) : Electronics
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
Amazon.com: Mmiaoxy Focus Focusing LCD Screen Glass Repair Part For Nikon D3100 D3200 D3300 D5100 D5200 D5300 Digital Camera : Electronics
Camera Screen Protector Optical Glass LCD Glass for Nikon D3100 D3200 D5000 D5100 D5200 D5300 D7000 D7100 - AliExpress