Alcatraz Watchtower Guard Tower Prison San Francisco
historic tourist san francisco history attraction staircase prison surveillance alcatraz watchtower penitentiary guard tower
| Date | 2013:06:17 10:50:37 |
| exif:ExifOffset | 89 |
| Exposure | 1/1000 |
| Flash | 16, 0 |
| F number | 4/1 |
| FocalLength | 259/10 |
| ISO | 100, 0 |
| Manufacturer | Panasonic |
| Model | DMC-FZ60 |