Attachment optics 5M to produce a focus spot
Attachment optics 5BL with integrated iris diaphragm
with fixed diameter
Attachment optics 5PF with integrated polarization filters (beam splitter cubes 5PF-C or dichroic glass polarization filters 5PF-P)
Attachment optics 5WP with integrated retardation optics e.g. half-wave plates or quarter-wave plates (zero or low order)