MAC 500 bayonet-mount focus lenses (P/N 62332052, MAC 500 17° achromatic focus lens, bayonet mount) are incompatible with screw-mount focus lenses (P/N 62332035, MAC 500/ RS 918 17° achromatic focus lens, screw mount, glued). The optional lens kits are summarized here as a reference. Note that a service tool for retrieving the new focus lens is available and that the 30° option has not been implemented for the bayonet-mount system.
For MAC 500s with screw-mount focus lens (before S/N 4019330001):
- P/N 91610009, MAC 500 23.5° lens kit for screw-mount system, complete
- P/N 91610010, MAC 500 30° lens kit for screw-mount system, complete
For MAC 500s with bayonet-mount focus lens (starting with S/N 4019330001):
- P/N 91610015, MAC 500 23.5° lens kit for bayonet-mount system, complete
- P/N 50521600, MAC 500 focus lens retrieval tool.