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VS-LDV25
The VS-LDV25 is part of the VS-LDV series and stands out as a distortionless macro lens with a focal length of 25mm. Offering versatility, it provides a variable working distance ranging from 100 to 500mm. With a magnification range of 0.05x to 0.21x, this lens is suitable for capturing detailed close-ups. The working aperture, ranging from F/3.5 to F/16, allows for flexibility in different lighting conditions. Designed with a C-mount, the VS-LDV25 is adaptable for various imaging applications, particularly those requiring distortion-free macro capabilities.
| Model | VS-LDV25 | |||
|---|---|---|---|---|
| Focal Length | 25mm | |||
| Maximum Aperture Ratio | 1:3.5 | |||
| Optical Mag range | x 0.05 ~ x 0.21 | |||
| Optical Mag. | × 0.05 | x 0.11 | x 0.21 | |
| FOV (VxH) | 1.1" | 206.0 × 282.0 mm | 93.6 × 128.2 mm | 49.1 × 67.1 mm |
| 1" | 225.2 × 225.2 mm | 102.4 × 102.4 mm | 53.6 × 53.6 mm | |
| 2/3" | 142.0 × 168.0 mm | 64.6 × 76.4 mm | 33.8 × 40.0 mm | |
| WD | 500.0mm | 200.0 mm | 100.0 mm | |
| O/I (Object & Imager Distance) | 573.5 mm | 275.2 mm | 177.5 mm | |
| Working F/# | 3.6 | 3.6 | 3.7 | |
| DOF at PCoC φ0.04mm | 115.2 | 23.8 | 6.7 | |
| TV distortion | 0.27% | 0.03 % | -0.28% | |
| Relative illuminance(Y=8.8) | 84 % | 86 % | 89 % | |
| Operation | Manual (Lock crew M2) | |||
| Wavelength | Visible | |||
| Camera Mount | C-mount | |||
| Flange Back | 17.526 mm | |||
| Sensor size (max.) | 1.1" | |||
| Filter Thread | M 30.5 P= 0.5 | |||
| Weight(approx.) | 160g | |||
| Dimension | Φ39 (MAX) × L= 56mm ~ 60mm | |||
| Lens Model | VS-LDV25 | |||
|---|---|---|---|---|
| Extension Ring (mm) | WD Minimum(mm) | WD Maximum (mm) | Mag @ Max WD | Mag @ Min WD |
| 0.5 | 89.3 | 348.1 | 0.068x | 0.229x |
| 1.0 | 65.0 | 264.4 | 0.088x | 0.249x |
| 1.5 | 73.0 | 211.8 | 0.108x | 0.269x |
| 2.0 | 175.5 | 66.9 | 0.128x | 0.288x |
| 5.0 | 41.3 | 80.9 | 0.248x | 0.408x |
