Optical Squares

Double pentagonal prism in metal housing. Prisms with silvered top and bottom. Highgrade-grinded-prisms with accuracy below 1'. Protective rotating metal cover for perfect quality and exactness. The straight-view of the prism is in the centre. Weight: 0,08 kg

Like GP1, however with an additional view as an optical plummet to the ground.

Like GP1, however Prisms not silvered at top and bottom.

with optical plummet

Double pentagonal prism in sturdy metal housing with construction accuracy to stake out right-angles. Precision of the prisms 2-3' Weight: 0,08 kg

Double pentagonal prism with big fields of view, in construction accuracy, sturdy metalhousing. Precision of the prisms: 3' Weight: 0,09 kg

Like GP1, however with straight-views over and under the prisms. Weight: 0,08 kg

Double pentagonal prism with free view between the prisms, folding closure. Metal housing, backsides, latching. Precision of the prisms: 1' Weight: 0,09 kg

Cross sight prism. Double pentagonal prism with free view over and under the prisms. Metal housing. Weight: 0,09 kg

The rotating mirros gives the possibility to stake out all curves. Anodized metal finish with cover to protect the special mirrors. Weight: 0,11 kg

soft leather with zipper

with additional free view as an optical plummet to the ground.

Made of strong leather with snapper

with socket pin for optical squares, telescopic adjustable Length: 0,67 m Extended: 1,60 m Weight: 0,60 kg

with socket pin for optical squares, rigid Length: 1,50 m Weight: 0,85 kg

very sturdy pole, telescopic adjustable Length: 1,00 m Extended: 1,70 m Weight: 1,0 kg

like LS30, however with adjustable bubble: 40' Length: 1,00 m Extended: 1,70 m Weight: 1,0 kg

Plumbing rod like LS20, however with inclined-adaptor to use with Optical-Square GP8 Length: 0,67 m Extended: 1,60 m Weight: 0,60 kg

Anodized Metal, with socket adaptor for range poles. Fixing hole for screw. Diameter: 28 mm

Like GA10, anyhow made of plastic