Description
The Goecke magnetic monitoring ball prism dia 30 mm is a monitoring prism made by Goecke (part number 46-1451-SP (with certificate: -PS suffix)).
Its absolute prism constant is -11.3 mm, which is +23.1 mm on the Leica scale.
Specifications
| Model: | 46-1451-SP |
| Manufacturer: | Goecke |
| MPN: | 46-1451-SP (with certificate: -PS suffix) |
| Status: | Current |
| Height Offset: | 30.8 mm |
| Absolute constant: | -11.30 mm |
| Leica constant: | +23.10 mm |
| Constant source: | Manufacturer documentation |
| Dimensions (W × H × D): | 30×30×30 mm |
| Prism diameter: | 17.5 mm |
| Weight: | 80 g |
| Mount: | Magnetic ball (seats in magnetic nests) |
| Coating: | Silver back |
| Housing: | Polished magnetic stainless steel |
| Last verified: | 21/10/2026 |
Sources
Goecke magnetic monitoring ball prism dia 30 mm FAQ
Below is a list of frequently asked questions about Goecke magnetic monitoring ball prism dia 30 mm.
What is the prism constant for the Goecke magnetic monitoring ball prism dia 30 mm?
The absolute prism constant for the Goecke magnetic monitoring ball prism dia 30 mm is -11.3mm. The Leica constant is 23.1mm.
Can I use the Goecke magnetic monitoring ball prism dia 30 mm with a Leica instrument?
Yes, just set the prism constant to 23.1mm.
What is the height offset of the Goecke magnetic monitoring ball prism dia 30 mm?
The height offset is 30.8mm.
