Wideangle Fisheye Prime lenses for Nikon D3100
The Nikon D3100 incorporates the Nikon F mount & has a APS-C sensor. At this time, we have information on 8 Wideangle Fisheye Prime lenses which will fit the D3100.
The D3100 has a crop factor of 1.6 so you need to multiply the lens focal length with 1.6 to get it's full frame equivalence. You can just click the 
symbol to visualize how the lens fits the D3100.
We have also developed an Advanced Lens Search so you can find your ideal lens.
ModelVisualizeFocal LengthApertureStabilizedWeight
Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye5mmf/2.8 470g
Sigma 10mm F2.8 EX DC HSM Diagonal Fisheye10mmf/2.8 475g
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Sigma 15mm F2.8 EX DG Diagonal Fisheye15mmf/2.8 370g
Nikon AF DX Fisheye-Nikkor 10.5mm f2.8G ED11mmf/2.8 300g
Nikon AF Fisheye-Nikkor 16mm f2.8D16mmf/2.8 290g
Samyang 8mm F3.5 Aspherical IF MC Fisheye8mmf/3.5 443g
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Sigma 8mm F3.5 EX DG Circular Fisheye8mmf/3.5 400g
Rokinon 8mm f3.5 Aspherical Fisheye8mmf/3.5 443g