Always check your shutter count when buying a new camera: Nikon DX SLR (D40-D90, D3000-D7500) Talk Forum: Digital Photography Review
Anybody have a higher shutter count than this on a D300S (screenprint): Nikon Pro DX SLR (D500, D300, D200, D100) Talk Forum: Digital Photography Review
How to Check a DSLR's Shutter Count (and Why You Should Care) | Nikon d3000, Canon eos, Nikon d7100
Nikon D7100 DSLR Camera 4K Shutter Count | Digital SLR | Gumtree Australia Maroondah Area - Croydon North | 1300212286
Here is a free program to check the Nikon D850 shutter count (Windows only) - Nikon Rumors
Controls on Your Nikon D7100 Digital Camera - dummies