Description
The South TPS28 single prism system is a survey prism made by South (part number TPS28).
Its absolute prism constant is -30.0 mm, which is +4.4 mm on the Leica scale.
Specifications
| Model: | TPS28 |
| Manufacturer: | South |
| MPN: | TPS28 |
| Absolute constant: | -30.00 mm |
| Leica constant: | +4.40 mm |
| Constant source: | Dealer listing |
| Prism diameter: | 64 mm |
| Mount: | Adapter and tribrach (metal) |
| 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
South TPS28 single prism system FAQ
Below is a list of frequently asked questions about South TPS28 single prism system.
What is the prism constant for the South TPS28 single prism system?
The absolute prism constant for the South TPS28 single prism system is -30.0mm. The Leica constant is 4.4mm.
Can I use the South TPS28 single prism system with a Leica instrument?
Yes, just set the prism constant to 4.4mm.
