Description
The Goecke magnetic monitoring ball prism dia 1.5 inch (38.1 mm) is a monitoring prism made by Goecke (part number 46-1448).
Its absolute prism constant is -16.9 mm, which is +17.5 mm on the Leica scale.
Specifications
| Model: | 46-1448 |
| Manufacturer: | Goecke |
| MPN: | 46-1448 |
| Status: | Current |
| Height Offset: | 30.8 mm |
| Absolute constant: | -16.90 mm |
| Leica constant: | +17.50 mm |
| Constant source: | Manufacturer documentation |
| Dimensions (W × H × D): | 38.1×38.1×38.1 mm |
| Prism diameter: | 25 mm |
| Weight: | 160 g |
| Mount: | Magnetic ball |
| Coating: | Silver back |
| Housing: | Polished magnetic stainless steel |
| Last verified: | 21/10/2026 |
Sources
Goecke magnetic monitoring ball prism dia 1.5 inch (38.1 mm) FAQ
Below is a list of frequently asked questions about Goecke magnetic monitoring ball prism dia 1.5 inch (38.1 mm).
What is the prism constant for the Goecke magnetic monitoring ball prism dia 1.5 inch (38.1 mm)?
The absolute prism constant for the Goecke magnetic monitoring ball prism dia 1.5 inch (38.1 mm) is -16.9mm. The Leica constant is 17.5mm.
Can I use the Goecke magnetic monitoring ball prism dia 1.5 inch (38.1 mm) with a Leica instrument?
Yes, just set the prism constant to 17.5mm.
What is the height offset of the Goecke magnetic monitoring ball prism dia 1.5 inch (38.1 mm)?
The height offset is 30.8mm.
