Dioptometer BJ-025
The BJ-025 diopter telescope provides: 1. Testing of optical-instrument eyepiece diopter range, zero position and accuracy. 2. Testing of eyepiece diopters and diopter-zero deviation. 3. Use as an auxiliary telescope for testing optical-instrument image quality and resolving power.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Objective Focal Length | 50 mm |
| Effective Aperture | ≥φ 14.5 mm |
| Magnification | 2.5^X |
| Objective Resolution | ≤12.3'' |
| Field of View | ≥16 °40 ′ |
| Minimum Diopter Graduation | 0.5 SD |
| Measurement Range | ± 6 SD |
| Eyepiece Diopter | ±5 SD |
| Exit-pupil diameter | Φ 6 mm |
| Eye Relief | 18 mm |
Datasheet
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