Description
The Trimble GEDO Precise Prism in Holder is a survey prism made by Trimble (part number 4 520 001-35).
Its absolute prism constant is -35.0 mm, which is -0.6 mm on the Leica scale.
Specifications
| Model: | GEDO Precise Prism in Holder |
| Manufacturer: | Trimble |
| MPN: | 4 520 001-35 |
| Status: | Current |
| Height Offset: | 40.0 mm |
| Absolute constant: | -35.00 mm |
| Leica constant: | -0.60 mm |
| Constant source: | Dealer listing |
| Prism diameter: | 37 mm |
| Centring accuracy: | ±1.0 mm |
| Mount: | 10 mm socket |
| Coating: | Silver |
| Last verified: | 21/10/2026 |
Notes:
- The prism constant comes from a dealer listing and has not been confirmed in manufacturer documentation. Check the label on the prism before relying on it.
Sources
Trimble GEDO Precise Prism in Holder FAQ
Below is a list of frequently asked questions about Trimble GEDO Precise Prism in Holder.
What is the prism constant for the Trimble GEDO Precise Prism in Holder?
The absolute prism constant for the Trimble GEDO Precise Prism in Holder is -35.0mm. The Leica constant is -0.6mm.
Can I use the Trimble GEDO Precise Prism in Holder with a Leica instrument?
Yes, just set the prism constant to -0.6mm.
What is the height offset of the Trimble GEDO Precise Prism in Holder?
The height offset is 40.0mm.
