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| 01-OCT-2012 | |
You can see where there are more carotenoids in this feather... Carotenoids are the same material that our nails are made up of. Lighter-colored feathers have fewer carotenoids.
More carotenoids = greater resistance to wear and stress caused by the sun and friction. The darker areas on an old gull feather tend to hold up better than the white areas of a feather!
| Full EXIF Info | |
| Date/Time | 01-Oct-2012 07:53:52 |
| Make | Canon |
| Model | Canon EOS 40D |
| Flash Used | No |
| Focal Length | 390 mm |
| Exposure Time | 1/323 sec |
| Aperture | f/5.6 |
| ISO Equivalent | 320 |
| Exposure Bias | 1.00 |
| White Balance | |
| Metering Mode | |
| JPEG Quality | |
| Exposure Program | |
| Focus Distance | |
All images are copyright Erik Bruhnke 2011 and Naturally AvianŠ