4PCS KIT CLOSE-UP MACRO LENS SET +1 +2 +4 +10 for NIKON D5100 D3100 (52mm Compatible) - Walmart.com
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Amazon.com : Fashion Camera Case for Nikon D750 D800 D3100 D5100 / Canon EOS 77D 70D 760D 1200D 5D Mark III : Electronics
Nikon D3100 vs D5100
Nikon Deluxe Digital SLR Camera Case Gadget Bag for D3100 D3200 D5100
Amazon.com : Extra Large Soft Padded Camcorder Equipment Bag / Case For Nikon D3000, D3100, D3200, D3300, D5000, D5100, D5200, D5500, D7000, D7100, D7200, D600, D610, D700, D800, D90 DSLR and More