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- Find the smallest hex key in the OSELOTS toolkit.
- Locate the small hex-hole on the top of the stage (the threaded part on which the focusing lens is mounted; see image below)
- Tighten this screw until it is firm (over-tightening should not be necessary)
- Repeat stage motion test, and verify that stage moves smoothly to and (especially) away from home.
PROBLEM 5: Acquired images show very little or no light, particularly noticeable with calibration light sources:
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