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VS-LDA35
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-LDA35 | ||||
|---|---|---|---|---|---|
| Focal Length | 35mm | ||||
| Maximum Aperture Ratio | 1:1.9 | ||||
| Optical mag. range | x 0.3 ~ × 0.5 | ||||
| Optical mag. | x 0.30 | x 0.35 | x 0.40 | x 0.50 | |
| 2/3" | 23.7 × 28.0 | 20.3 × 24.0 | 17.8 × 21.0 | 14.2 × 16.8 | |
| FOV (VxH mm) | 1/2" | 16.0 × 21.3 | 13.7 × 18.3 | 12.0 × 16.0 | 9.6 × 12.8 |
| 1/3" | 12.0 × 16.0 | 10.3 × 13.7 | 9.0 × 12.0 | 7.2 × 9.6 | |
| WD | 142.9 mm | 126.2 mm | 113.7 mm | 96.1 mm | |
| O/I (Object & Imager distance) | 196.9 mm | 182.0 mm | 171.2 mm | 157.1 mm | |
| Working F/# *Value at Iris open | 2.5 | 2.6 | 2.7 | 2.9 | |
| DOF at PCoC φ0.04mm | 2.2 | 1.7 | 1.4 | 0.9 | |
| TV distortion | 0.02 % | 0.01 % | 0.01% | 0 % | |
| 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.) | 58 g | ||||
| Dimension | Φ 30.5 (MAX) × | L = 36.5 (×0.30) | ~ 43.5 (×0.50) mm |
| Lens Model | VS-LDA35 | |||
|---|---|---|---|---|
| Extension Ring (mm) | WD Minimum(mm) | WD Maximum (mm) | Mag @ Min WD | Mag @ Max WD |
| 0.5 | 94.2 | 137.6 | 0.314x | 0.514x |
| 1.0 | 125.1 | 132.6 | 0.329x | 0.529x |
| 1.5 | 90.6 | 128.2 | 0.343x | 0.543x |
| 2.0 | 89.0 | 124.2 | 0.357x | 0.557x |
| 5.0 | 80.6 | 105.2 | 0.443x | 0.643x |
| 10.0 | 70.7 | 86.0 | 0.585x | 0.785x |
| 15.0 | 63.8 | 74.2 | 0.728x | 0.928x |
| 20.0 | 58.8 | 66.3 | 0.871x | 1.071x |
| 25.0 | 54.9 | 60.6 | 1.014x | 1.214x |
| 30.0 | 51.9 | 56.4 | 1.156x | 1.356x |
| 35.0 | 49.4 | 53.0 | 1.299x | 1.499x |
| 40.0 | 47.4 | 50.4 | 1.442x | 1.642x |
| 45.0 | 45.7 | 48.2 | 1.584x | 1.784x |
| 50.0 | 44.2 | 46.4 | 1.727x | 1.927x |
