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VS-LDA30
LDA Series is design for producing low distortion image even when using with extension tubes 10 models from focal lengths f4mm～f75mm with reduced shading. Consistence Compact size: of 32mm in diameter (except for VS-LD 6.5). For VGA ～3 Megapixel sensors
| Model | VS-LDA30 | ||||
|---|---|---|---|---|---|
| Focal Length | 30mm | ||||
| Maximum Aperture Ratio | 1:2.0 | ||||
| Optical mag. range | x 0.05 ~ × 0.25 | ||||
| Optical mag. | x 0.08 | x 0.10 | x 0.20 | x 0.23 | |
| 2/3" | 88.8 × 105.0 | 71.0 × 84.0 | 35.5 × 42.0 | 30.9 × 36.5 | |
| FOV (VxH mm) | 1/2" | 60.0 × 80.0 | 48.0 × 64.0 | 24.0 × 32.0 | 20.9 × 27.8 |
| 1/3" | 45.0 × 60.0 | 36.0 × 48.0 | 18.0 × 24.0 | 15.7 × 20.9 | |
| WD | 381.6 mm | 307.2 mm | 160.2 mm | 141.5 mm | |
| O/I (Object & Imager distance) | 431.1 mm | 356.7 mm | 209.7 mm | 191.0 mm | |
| Working F/# *Value at Iris open | 2.4 | 2.4 | 2.7 | 2.8 | |
| TV distortion | 0.08 % | 0.05 % | -0.04 % | -0.06% | |
| Operation of Iris & Zoom | Manual (Lock crew M2) | Manual (Lock crew M2) | Manual (Lock crew M2) | Manual (Lock crew M2) | |
| Wavelength | Visible | Visible | Visible | Visible | |
| Camera mount | C-mount | ||||
| Flange Back | 17.526 mm | ||||
| Sensor size (max.) | 2/3" | ||||
| Filter Thread | M 27 P= 0.5 | ||||
| Weight (approx.) | 47 g | ||||
| Dimension | Φ 30.5 (MAX) × | L = 32mm |
| Lens Model | VS-LDA30 | |||
|---|---|---|---|---|
| Extension Ring (mm) | WD Minimum(mm) | WD Maximum (mm) | Mag @ Min WD | Mag @ Max WD |
| 0.5 | 135.0 | 315.8 | 0.097x | 0.247x |
| 1.0 | 125.1 | 272.0 | 0.113x | 0.263x |
| 1.5 | 125.1 | 237.3 | 0.130x | 0.280x |
| 2.0 | 112.1 | 210.6 | 0.147x | 0.297x |
| 5.0 | 86.6 | 128.0 | 0.247x | 0.397x |
| 10.0 | 64.3 | 79.2 | 0.413x | 0.563x |
| 15.0 | 52.1 | 58.3 | 0.580x | 0.730x |
| 20.0 | 44.5 | 46.7 | 0.747x | 0.897x |
| 25.0 | 39.3 | 39.4 | 0.913x | 1.063x |
| 30.0 | 34.3 | 35.4 | 1.080x | 1.230x |
| 35.0 | 30.6 | 32.5 | 1.247x | 1.397x |
