In this project, PLA filament was good enough for the proof-of-concept prints. Once I was confident in the overall approach, I switched to PETG which is heat- and oil-resistant. Oil resistance is important because the camera lens screw thread should be lubricated with grease.

As in my other Lubitel project, I chose recycled filament: r-PLA and r-PETG by EKO MB. And I'm more than satisfied with the results!