Description
The Seco Nodal Point Stakeout Mini 25 mm Prism with Site Cones is a mini prism made by Seco (part number 6405-12-FOR).
Its absolute prism constant is -17.5 mm, which is +16.9 mm on the Leica scale.
Specifications
| Model: | 6405-12 |
| Manufacturer: | Seco |
| MPN: | 6405-12-FOR |
| Status: | Current |
| Absolute constant: | -17.50 mm |
| Leica constant: | +16.90 mm |
| Constant source: | Manufacturer documentation |
| Prism diameter: | 25 mm |
| Last verified: | 21/10/2026 |
Sources
Seco Nodal Point Stakeout Mini 25 mm Prism with Site Cones FAQ
Below is a list of frequently asked questions about Seco Nodal Point Stakeout Mini 25 mm Prism with Site Cones.
What is the prism constant for the Seco Nodal Point Stakeout Mini 25 mm Prism with Site Cones?
The absolute prism constant for the Seco Nodal Point Stakeout Mini 25 mm Prism with Site Cones is -17.5mm. The Leica constant is 16.9mm.
Can I use the Seco Nodal Point Stakeout Mini 25 mm Prism with Site Cones with a Leica instrument?
Yes, just set the prism constant to 16.9mm.
