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VS-LDA20
The VS-LDA20 is one of the Distortionless Macro Lenses under VS-LDA Series. It features a fixed focal length of 20mm and a flexible working distance ranging from 510.3mm to 86.6mm. With magnification ranging from 0.04x to 0.22x at infinity, it excels in distortionless close-up imaging. The lens is optimized for light gathering with a working F/# of 2.1 – 2.3, and its C-Mount design ensures compatibility with various cameras and imaging systems. Overall, the VS-LDA20 is an ideal choice for applications that demand precise imaging with minimal distortion.
| Model | VS-LDA20 | ||||
|---|---|---|---|---|---|
| Focal Length | 20mm | ||||
| Maximum aperture ratio | 1: 2.0 | ||||
| Optical Mag Range | (∞) x 0.04 ~ x 0.22 | ||||
| Optical mag. | x 0.04 | x 0.08 | x 0.15 | x0.22 | |
| FOV (VxH mm) | 2/3" | 177.5 × 210.0 mm | 88.8 x 105.0 mm | 47.3 × 56.0 mm | 32.3 × 38.2 mm |
| 1/2" | 120.0 x 160.0 mm | 60.0 × 80.0 mm | 32.0 x 42.7mm | 21.8 × 29.1mm | |
| 1/3" | 90.0 × 120.0 mm | 45.0 x 60.0 mm | 24.0 × 32.0mm | 16.4 × 21.8 mm | |
| WD | 510.3mm | 251.3mm | 130.5 mm | 86.6 mm | |
| O/I (Object & Imager distance) | 558.8 mm | 300.6 mm | 181.3mm | 138.8 mm | |
| Working F/# | 2.1 | 2.2 | 2.3 | 2.3 | |
| TV distortion | -0.01 % | -0.05 % | -0.12 % | -0.17 % | |
| Operation | Manual | ||||
| Wavelength | 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 = 31.0 (×0.04) ~ 34.7 (×0.22) mm | ||||
