Best lenses for the 24M-Pix Nikon D7100: Best standard and portrait primes and zooms - DXOMARK
Amazon.com : Nikon Extension Tube Macro Ring Compatible with for Nikon D7100,D7000,D5600,D5500,D5300,D5200,D3300,D3200,D3100, D3000,D810,D70, D80, D90, D40,D4,D4S,D3,D3S,D3X,D2,D2H,DSLR Camera : Electronics
Amazon.com: 52mm Telephoto Lens Kit for Nikon D7100 D7200 and All Nikon DSLR Camera : Electronics
Amazon.com : Nikon D7100 24.1 MP DX-Format CMOS Digital SLR with 18-140mm f/3.5-5.6G ED VR Auto Focus-S DX NIKKOR Zoom Lens : Slr Digital Cameras : Electronics
Nikon Camera and Lens Compatibility Chart
Amazon.com : Dual Macro LED Ring Light/Flash Compatible with Nikon D7100 (Applicable for All Nikon Lenses) : Electronics