VS LD Series of Distortionless Macro Lens
Lens tibe shifting makes easy setup of WD and FOV with low distortion and high contrast suitable for inpection, matching, and OCR application
 |  Image samples for distortion
 | | | Distortionless Macro Lens
 |  | | |
|
VS-LD macro lens specialized for Short WD. The range is made up of a variety of 10mm , 25mm, 35mm, 50mm and 75mm. The range covers from wide angle or low magnification to high magnification with small FOV. Lens tube shifting capabilites of the LD series enables setup of different magnification and WD without the use of extension rings.Optically design for mega pixels sensor, with very low distortion and high contrast that stays throughout the whole FOV.
Drawing of VS-LD25
| Optical Mag. | 0.02x | 0.05x | 0.08x | 0.1x |
| FOV (VxHmm) 2/3” | - | - | - | - |
| FOV (VxHmm) 1/2” | 240x320 | 96x128 | 60x80 | 48x64 |
| FOV (VxHmm) 1/3” | 180x240 | 72x96 | 45x60 | 36x48 |
| WD(mm) | 500.1 | 192 | 115 | 89.3 |
| NA | 0.004 | 0.01 | 0.02 | 0.02 |
| TV Distortion | Less than -0.1% | Less than -0.05% | Less than -0.05% | Less than -0.05% |
| Optical Mag. | 0.135x | 0.15x | 0.2x | 0.29x |
| FOV (VxHmm) 2/3” | 48.8x65.1 | 44x58.6 | 33x44 | 22.7x30.3 |
| FOV (VxHmm) 1/2” | 35.6x47.4 | 32x42.7 | 24x32 | 16.6x22.1 |
| FOV (VxHmm) 1/3” | 26.7x35.6 | 24x32 | 18x24 | 12.4x16.6 |
| WD(mm) | 190.5 | 171.8 | 129.9 | 90.8 |
| NA | 0.03 | 0.04 | 0.05 | 0.06 |
| TV Distortion | Less than +0.1% | Less than +0.02 | Less than +0.02 | Less than +0.02 |
| Optical Mag. | 0.3x | 0.35x | 0.4x | 0.5x |
| FOV (VxHmm) 2/3” | 22x29.3 | 18.9x25.1 | 16.5x22 | 13.2x17.6 |
| FOV (VxHmm) 1/2” | 16x21.3 | 13.7x18.3 | 12x16 | 9.6x12.8 |
| FOV (VxHmm) 1/3” | 12x16 | 10.3x13.7 | 9x12 | 7.2x9.6 |
| WD(mm) | 142.4 | 125.7 | 113.2 | 95.7 |
| NA | 0.06 | 0.07 | 0.07 | 0.09 |
| TV Distortion | Less than -0.03% | Less than -0.03% | Less than -0.03% | Less than -0.03% |
| Optical Mag. | 0.1x | 0.15x | 0.2x | 0.25x |
| FOV (VxHmm) 2/3” | 66x88 | 44x58.7 | 33x44 | 26.4x35.2 |
| FOV (VxHmm) 1/2” | 48x64 | 32x42.7 | 24x32 | 19.2x25.6 |
| FOV (VxHmm) 1/3” | 36x48 | 24x32 | 18x24 | 14.4x19.2 |
| WD(mm) | 567.5 | 342.2 | 261.5 | 213 |
| NA | 0.02 | 0.03 | 0.03 | 0.04 |
| TV Distortion | Less than +0.05% | Less than +0.05% | Less than +0.05% | Less than +0.05% |
| Optical Mag. | 0.15x | 0.2x | 0.3x | 0.35x | | FOV (VxHmm) 2/3” | (44x58.7) | 33x44 | 22x29.3 | 18.9x25.1 | | FOV (VxHmm) 1/2” | 32x42.7 | 24x32 | 16x21.3 | 13.7x18.3 | | FOV (VxHmm) 1/3” | 24x32 | 18x24 | 12x16 | 10.3x13.7 | | WD(mm) | 527.7 | 404.4 | 281.1 | 245.9 | | NA | 0.02 | 0.02 | 0.03 | 0.03 | | TV Distortion | Less than -0.02% | Less than -0.02% | Less than -0.02% | Less than -0.02% |
|
