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Nikon D3100 - Wikipedia
Best Buy: Nikon D3100 DSLR Camera with 18-55mm and 55-200mm Lens Black 13284
Lens Cap For Nikon D5100 D3100 D5000 D3000 D3200 D5200 D5300 D3300 D5500 FM10 (52 mm Compatible) - Walmart.com
Used Nikon D3100 14.2MP Digital SLR Camera Body in 'Good' condition