Nikon D3100 Mic Input Jack? Microphone Options Explained - Outside the Shot
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NIKON D3100 - HOW TO IMPROVE AUDIO - YouTube
How to set-up and external mic on a DSLR - YouTube
Nikon D3100 14.2MP Digital SLR Camera Body | D3100BODY | Black | eBay
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Nikon D3100 digital SLR announced and previewed: Digital Photography Review
Best Buy: Nikon D3100 DSLR Camera with 18-55mm and 55-200mm Lens Black 13284
Nikon D3100 review
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Nikon ME-1 Stereo Microphone 27045 B&H Photo Video