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- Sat Jan 22, 2011 9:55 am
- Forum: General Discussion Forum and Community Announcements
- Topic: Mirror microscope ?
- Replies: 4
- Views: 1869
Cassegrain microscopes...
The obstruction isn't really a problem. It doesn't turn Airy disks into doughnuts, at least not terribly close to focus, it just diverts light from the central disk into the outer rings. The doughnuts don't show up until very far away from the focus. Of course, these things are ridiculously expensiv...