What are gobos used for?

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Tags

1. #optics
2. #projects
3. #lighting
4. #acronym
5. #piece
6. #phrase
7. #placed
8. #steel
9. #before
10. #instruments
11. #glass
12. #there
13. #accept
14. #specific
15. #which
16. #gobos
17. #fixture
18. #image