Wooden, to take lenses or mirrors up to 76mm diameter. Comprising an upright 100mm high, with a V shape slot to hold a convex or concave lens, mounted on a rectangular base 100x50mm. An index mark is engraved on each end of the base.
- Lens Holder : Comprising metal holder with sides grooved to hold lens or mirror of 50mm diameter.
- Lens Holder : Round made of unbreakable PVC material, to take lens or mirror of 50mm diameter.
- Lens Holder : Cast light metal, for lenses upto 25mm to 63mm diameter, with V-arms mounted on stem 9.5mm diameter.
- Lens Holder : Spring pattern, to hold lens or mirror of 50mm diameter, V-groove in centre of holder. Mounted on 6mm metal rod which fits into standard optical bench mounts and stands. Supplied with bakelite base.