V1N Round Head Camera Flash Speedlite TTL 24G HSS Speedlight for Nikon DSLR Cameras for Nikon
Black bar across the top of the photo. No flash is used (Nikon D-3100) : r/ Nikon
Meike Mk-mt24 Macro Twin Lite Flash For Nikon Digital Slr Cameras D1x D2 D80 D90 D610 D3100 D3200 D3300 D3400 D5000 D5100 D5300 - Flashes - AliExpress
Nikon D3100 Review - Flash
Amazon.com : Giant All You Need Accessory KIT for Nikon D3100 D3200 D5000 D5100 with Backpack Tripod Flash TELEPHOTO Lens Wide Angle Lens Filter KIT Remote Control Close UP Lenses 2 EN-EL14
Nikon D3100
Nikon D3100 14.2 MP With Batery Grip, 2 Batteries & Charger, SB-500 Flash, 18-55 - photo/video - by owner -...
Nikon D3100 Review - Flash
Wireless remote shutter for Canon and Flash Trigger (2 pack)
Excellent Nikon D3100 DSLR CAMERA & NIKON SPEEDLIGHT&More.MUST READ AD - photo/video - by owner - electronics sale -...
How to Control Flash Output Manually with a Nikon D3100 - dummies