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| I am using a Televue Ranger, F/6.8 480mm focal length refractor for this project. It has a 1.25" objective, ED glass so I do see some chromatic aberation just like Galileo did! |
| Total images: 5 | Last update: 1/17/09 10:39 PM | Help |
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| I am using a Televue Ranger, F/6.8 480mm focal length refractor for this project. It has a 1.25" objective, ED glass so I do see some chromatic aberation just like Galileo did! |
| Total images: 5 | Last update: 1/17/09 10:39 PM | Help |