
Description
The Geomax ZMP100 Mini Prism comes with an Integrated bubble is used in Surveying and Construction as a Target Reflector for measuring distances on the field by Engineers and Contractors.
The ZMP101 is built for durable and stable pole mounting, compatible with the ZPT4 pole. Rugged by design, it consists of a corner cube reflector mounted in a shock resistant plastic with high UV resistance. It is typically used with a stainless steel tip.
A direct equivalent to this prism is the Leica GMP111 Mini Prism.
Specifications
| Model: | ZMP101 |
| Manufacturer: | GeoMax |
| MPN: | 842461 |
| Height Offset: | 50.0 mm |
| Absolute constant: | -16.90 mm |
| Leica constant: | +17.50 mm |
| Weight: | 170 g |
| Mount: | 1/4" Thread |
Notes:
Below is a table with approximate prism ranges, based on atmospheric conditions.
| ↓ Surveying Prism | Poor | Good | Best |
| ZPR100 Standard Prism | 1800m | 3000m | 3700m |
| 3x ZPR100 Prisms | 2300m | 4500m | 5400m |
| ZRP1 & GRZ122 360° Prisms | 800m | 1500m | 2100m |
| Leica GRZ101 360° Mini Prisms | 500m | 800m | 1000m |
| → ZMP100 & ZMP101 Mini Prisms | 800m | 1200m | 2100m |
| ZTM100 Reflective Tape | 200m | 200m | 200m |
Atmospheric conditions are defined as:
- Poor – Strong haze & 5km visibility or strong sunlight with severe heat shimmer
- Good – Light haze & visibility about 20 km or moderate sunlight with slight heat shimmer
- Best – Overcast, no haze, visibility about 40 km & no heat shimmer.
GeoMax ZMP101 FAQ
Below is a list of frequently asked questions about GeoMax ZMP101.
What is the prism constant for the GeoMax ZMP101?
The absolute prism constant for the GeoMax ZMP101 is -16.9mm. The Leica constant is 17.5mm.
Can I use the GeoMax ZMP101 with a Leica instrument?
Yes, just set the prism constant to 17.5mm.
What is the height offset of the GeoMax ZMP101?
The height offset is 50.0mm.




