How To Record Video With The Nikon D3100 | Beginner Guide - YouTube
Dr Beni Rusani on Twitter: "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" / Twitter
Nikon D3100 DSLR Camera Highlights & Overview - YouTube