| Camera Maker | Nikon Corporation | Camera Model | NIKON D90 |
| Aperture | f/6.3 | Exposure Value | 0 EV |
| Exposure Program | Unknown: 0 | Exposure Time | 1/160 sec |
| Flash | No Flash | Focal Length | 18 mm |
| ISO | 200 | Metering Mode | Pattern |
| Date/Time | 2013:09:14 08:33:53 | Resolution Unit | Inch |
| X Resolution | 240 dots per ResolutionUnit | Y Resolution | 240 dots per ResolutionUnit |
| Compression | Jpeg Compression | Contrast | 0 |
| Exposure Mode | 0 | Saturation | 0 |
| Scene Type | Directly Photographed | Sharpness | 0 |
| Subject Distance | 2.82 | Caption | While all the guides show popping a chalk line to mark the locations of the ridges, I quickly realized that lots of slippery chalk on a nice smooth metal surface is not a very good idea! |