Description

Adjustable direction of prism in X & Y axis easily

Nodal prism can be set at a -41mm offset (used with Myzox 63.5mm cannister prism)

Anchor bolt is in the set with M8 screw size

M20 female thread mount for prism

The prism and mount are sold separately.

Set contents: Base plate, Anchor

[Nodal Prism]

Surveying prisms and holders that are not in the nodal position can cause angular errors when using the prism apex as a target if it is not perfectly pointed towerd the measuring instrument. To reduce pointing errors, Nodal prisms are designed with a nodal point alignment at -41mm offset for 2.5inch prism. To compensate for pointing errors, nodal point alignment minimizes the error associated with misalignments.