spiral stair 2

Exposure Date: 2013:07:10 14:29:05;
Make: Canon;
Model: Canon IXUS 230 HS;
ExposureTime: 1/15 s;
FNumber: f/3;
ISOSpeedRatings: 400;
ExposureBiasValue: 0/3;
MeteringMode: Pattern;
Flash: Flash fired, auto mode, red-eye reduction mode;
FocalLength: 5 mm;
Software: Adobe Photoshop CS6 (Macintosh);