Rectangular, clear, all sides polished.
In Stock
Optically worked, back silvered, with protective coating.
With 6 mm diameter Metal rod, to fit into standard optical bench mounts and stands.
90 mm diameter, 16 mm thickness.
Diameter 25 mm, mounted in plastic eye-grip frame.
Wooden, with V shaped slot to take spherical lens or mirror up to 75 mm diameter, with index mark.