the system carrier frame for use.The Galilei systems are installed using the adapter system Item No. 1625The Galilean system is set at infinity, reading caps are used for reading (see table).Ocular and objective

the system carrier frame for use.The Galilei systems are installed using the adapter system Item No. 1625The Galilean system is set at infinity, reading caps are used for reading (see table).Ocular and objective