The Round Optics Adapter 840-0100-A1 may be attached to the platform of 840-0102-T mount on any side.
Optics rests on the two contact lines – the edges of the cut-off corner – and is firmly held in place by a stainless steel fixing screw. Frame doesn't obstruct the view. It allows to work with two beams situated very closely.
Suitable for optics Ø 23. 2÷25. 4 mm.