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- Fri Mar 26, 2021 12:35 am
- Forum: Sandbox
- Topic: questions about an AO Fifty Phase
- Replies: 6
- Views: 7112
questions about an AO Fifty Phase
I recently discovered an old "American Optical Fifty Phase" microscope that had been stored away for many years. It is monocular and has a " filter wheel" where the diaphragm would be on a typical scope. The wheel has four settings labelled with a white, a green, and a yellow-green bar, and one with...