
Description
The Seco 25 mm Mini Prism System with Centre Vial is a mini prism made by Seco (part number 6200-10-FOR).
It can be set up in two positions, giving an absolute prism constant of 0.0 mm or -30.0 mm (+34.4 mm or +4.4 mm on the Leica scale). Always check which position is in use before measuring.
Specifications
| Model: | 6200-10 |
| Manufacturer: | Seco |
| MPN: | 6200-10-FOR |
| Status: | Current |
| Absolute constant: | +0.00 mm or -30.00 mm |
| Leica constant: | +34.40 mm or +4.40 mm |
| Two mounting positions. Check which one is in use before measuring. | |
| Constant source: | Manufacturer documentation |
| Prism diameter: | 25 mm |
| Mount: | Screw Holes |
| Coating: | copper |
| Last verified: | 21/10/2026 |
Sources
Seco 25 mm Mini Prism System with Centre Vial FAQ
Below is a list of frequently asked questions about Seco 25 mm Mini Prism System with Centre Vial.
What is the prism constant for the Seco 25 mm Mini Prism System with Centre Vial?
The Seco 25 mm Mini Prism System with Centre Vial has two mounting positions. The absolute prism constant is 0.0mm or -30.0mm. The Leica constant is 34.4mm or 4.4mm.
Can I use the Seco 25 mm Mini Prism System with Centre Vial with a Leica instrument?
Yes, just set the prism constant to 34.4mm (or 4.4mm in the second position).

