Nikon V1, 50/1.8D AF Nikkor, Fotodiox adapter
Exposure Date: 2013:09:01 23:02:39;
Make: NIKON CORPORATION;
Model: NIKON 1 V1;
ExposureTime: 1/100 s;
FNumber: f/0;
ISOSpeedRatings: 1600;
ExposureProgram: Manual;
ExposureBiasValue: 0/6;
MeteringMode: Pattern;
Flash: Flash did not fire;
FocalLength: 0 mm;
FocalLengthIn35mmFilm: 0 mm;
Software: ViewNX 2.3 W;
File name: DSC_5691_001_ViewNX2.JPG
ViewNX2 adjustments: auto WB (3000k); Standard color mode; auto axial and lateral chromatic aberration fix;
I'd estimate the aperture was f/2.8, judging from shapes of out of focus lights.