One issue with the old 90Prime filter wheel holders is that brass shavings would flake off of them, and get into the lens assembly.
We have now installed new filter wheel holders with a different material that should not flake off: Issue #31 .
To determine if the brass shavings issue is now solved, we should clean the lens assembly at some point and monitor. This is not something that will get done immediately.
One issue with the old 90Prime filter wheel holders is that brass shavings would flake off of them, and get into the lens assembly. We have now installed new filter wheel holders with a different material that should not flake off: Issue #31 .
To determine if the brass shavings issue is now solved, we should clean the lens assembly at some point and monitor. This is not something that will get done immediately.