Description
The AdirPro 360 Degree Robotic Sliding Prism Kit (Topcon/Sokkia style) is a 360° prism made by AdirPro (part number 720-28).
Its absolute prism constant is -7.0 mm, which is +27.4 mm on the Leica scale.
Specifications
| Model: | 720-28 |
| Manufacturer: | AdirPro |
| MPN: | 720-28 |
| Status: | Current |
| Absolute constant: | -7.00 mm |
| Leica constant: | +27.40 mm |
| Constant source: | Dealer listing |
| Weight: | 544 g |
| Mount: | 5/8" Thread |
| Equivalents: | Sokkia ATP1S / Topcon ATP2S |
| 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
AdirPro 360 Degree Robotic Sliding Prism Kit (Topcon/Sokkia style) FAQ
Below is a list of frequently asked questions about AdirPro 360 Degree Robotic Sliding Prism Kit (Topcon/Sokkia style).
What is the prism constant for the AdirPro 360 Degree Robotic Sliding Prism Kit (Topcon/Sokkia style)?
The absolute prism constant for the AdirPro 360 Degree Robotic Sliding Prism Kit (Topcon/Sokkia style) is -7.0mm. The Leica constant is 27.4mm.
Can I use the AdirPro 360 Degree Robotic Sliding Prism Kit (Topcon/Sokkia style) with a Leica instrument?
Yes, just set the prism constant to 27.4mm.
