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This instrument is mainly suitable for high precision of engineering including construction project,mine,road ,bridge,and te setting of large-scale equipment,etc.New styled air damping have short time for damping, super clear imaging,high precision of setting accuracy.
| C24 | C28 | C32 | |
| Image | Erect | Erect | Erect |
| Magnification | 24X | 28X | 32X |
| Objective Aperture | 36mm | 40mm | 40mm |
| Field of view | 1°20' | 1°20' | 1°20' |
| Minimum focus | 0.3m | 0.3m | 0.3m |
| Multiplication constant | 100 | 100 | 100 |
| Additive constant | 0 | 0 | 0 |
| Compensator range | ±15' | ±15' | ±15' |
| Compensator setting accuracy | ±0.8" | ±0.5" | ±0.3" |
| Sensitivity of bubble | 8'/2mm | 8'/2mm | 8'/2mm |
| Horiz.circle-reading | 1°or 1gon | 1°or 1gon | 1°or 1gon |
| Standard deviation for 1km double run leveling | 2.0mm | 1.5mm | 1.0mm |
(DS-B32)(1.0mm accuracy)(32X Magnification)auto level