1.Sokkia land survey prism .
2.Prism constant : 0mm/-30mm .
3.62mm prism with silver coated .
Sokkia land survey prism
1. Prism mount and prism canister are made of plastic, Prism target are made of metal .
2. Prism 62mm Silver Coated Water Sealed .
3. Three prism target color are available .