John explains the telescope for the BBC.
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| File size | 5361102 |
| Original date | 12/2/06 4:52 PM |
| Resolution | 3504 x 2336 |
| Flash | Flash did not fire, auto |
| Focal length | 28.0mm |
| Exposure time | 1/40s |
| Aperture | 5.0 |
| Focus Distance | |
| Metering Mode | Multi-segment |
| Camera make | Canon |
| Camera model | Canon EOS 20D |
| Sensor type | |
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