User's Manual

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5.3 The Optical Sight ...........................................................................................................70
5.4 Optical Plummet and Laser Plummet............................................................................ 70
5.4.1 Optical Plummet(factory optional)......................................................................... 70
5.4.2 Laser Plummet........................................................................................................ 71
5.5 Vertical Cross-hair on Telescope.................................................................................... 72
5.6 Horizontal Collimation Error C..................................................................................... 73
5.7 Vertical Index Error ....................................................................................................... 74
5.8 EDM Optical Axis and the Telescope Sighting Axis Error............................................. 76
6. Specifications .........................................................................................................77
8. Standard components............................................................................................80
Appendix I: Atmospheric correction formula and chart(Just for reference)........................ 81
Appendix II: Correction for refraction and earth curvature................................................ 83
Appendix III: Assembling and disassembling for three-jaw tribrach................................... 84