Table for WD, FOV and Extension Tube Length (Reference)
30 mm 1：2.0 0.08x ～ 0.23x
Focal Length (f) Maximum Aperture Ratio Optical Mag. Range Optical Mag. FOV (VxH) WD 2/3" 1/2" 1/3" O/I (Object & Imager distance) Working F/# *Value at Iris open TV Distortion (2/3") Operation of Iris & Zoom Wavelength Mount Flange Back Sensor Size (max.) Filter Thread Weight (approx.) Dimension Focal Length (f) Maximum Aperture Ratio Optical Mag. Range Optical Mag. FOV (VxH) WD 2/3" 1/2" 1/3" O/I (Object & Imager distance) Working F/# *Value at Iris open DOF at PCoC φ0.04mm TV Distortion (2/3") Operation of Iris & Zoom Wavelength Mount Flange Back Sensor Size (max.) Filter Thread Weight (approx.) Dimension Focal Length (f) Maximum Aperture Ratio Optical Mag. Range Optical Mag. FOV (VxH) WD 2/3" 1/2" 1/3" O/I (Object & Imager distance) Working F/# *Value at Iris open TV Distortion (2/3") Operation of Iris & Zoom Wavelength Mount Flange Back Sensor Size (max.) Filter Thread Weight (approx.) Dimension Focal Length (f) Maximum Aperture Ratio Optical Mag. Range Optical Mag. FOV (VxH) WD 2/3" 1/2" 1/3" O/I (Object & Imager distance) Working F/# *Value at Iris open TV Distortion (2/3") Operation of Iris & Zoom Wavelength Mount Flange Back Sensor Size (max.) Filter Thread Weight (approx.) Dimension
VS-LDA30
0.08x 88.8 x 105.0 60.0 x 80.0 45.0 x 60.0 381.6 mm 431.1 mm 2.4 0.08 %
0.10x 71.0 x 84.0 48.0 x 64.0 36.0 x 48.0 307.2 mm 356.7 mm 2.4 0.05 %
0.20x 35.5 x 42.0 24.0 x 32.0 18.0 x 24.0 160.2 mm 209.7 mm 2.7 -0.04 %
0.23x 30.9 x 36.5 20.9 x 27.8 15.7 x 20.9 141.5 mm 191.0 mm 2.8 -0.06 %
Exten- sion Tube (mm)
VS-LDA4 f4 400～90mm 403.2
VS-LDA6.5 f6.5 650～95mm 653.2
VS-LDA10 f10 330～90mm 330.2
VS-LDA15 f15 500～90mm 489.2
VS-LDA20 f20 500～90mm 510.3
VS-LDA25 f25 500～100mm
VS-LDA30 f30 400～150mm 381.6
VS-LDA35 f35 150～100mm 142.9
VS-LDA50 f50 500～200mm 512.4
VS-LDA75 f75 530～250mm 527.5
Model Focal Length Focus WD
141.5 20.9x27.8 15.7x20.9 0.230x 135.0 19.4x25.9 14.6x19.4 0.247x 125.1 18.3x24.3 13.7x18.3 0.263x 125.1 17.1x22.9 12.9x17.1 0.280x 112.1 16.2x21.5 12.1x16.2 0.297x 86.6 12.1x16.1 9.1x12.1 0.397x 64.3 8.5x11.4
96.1 9.6x12.8 7.2x9.6 0.500x 94.2 9.3x12.5 7.0x9.3 0.514x 92.3 9.1x12.1 6.8x9.1 0.529x 90.6 8.8x11.8 6.6x8.8 0.543x 89.0 8.6x11.5 6.5x8.6 0.557x 80.6 7.5x10.0 5.6x7.5 0.643x 70.7 6.1x8.2 4.6x6.1 0.785x 63.8 5.2x6.9 3.9x5.2 0.928x 58.8 4.5x6.0 3.4x4.5 1.071x 54.9 4.0x5.3 3.0x4.0 1.214x 51.9 3.5x4.7 2.7x3.5 1.356x 49.4 3.2x4.3 2.4x3.2 1.499x 47.4 2.9x3.9 2.2x2.9 1.642x 45.7 2.7x3.6 2.0x2.7 1.784x 44.2 2.5x3.3 1.9x2.5 1.927x
221.5 19.2x25.6 14.4x19.2 0.250x 214.1 18.5x24.6 13.8x18.5 0.260x 206.5 17.7x23.6 13.3x17.7 0.271x 200.1 17.1x22.8 12.8x17.1 0.281x 194.2 16.5x22.0 12.4x16.5 0.291x 165.0 13.6x18.1 10.2x13.6 0.353x 133.9 10.5x14.0 7.9x10.5 0.456x 114.4 8.6x11.4
245.6 13.7x18.3 10.3x13.7 0.350x 241.5 13.4x17.9 10.1x13.4 0.357x 237.5 13.2x17.6 9.9x13.2 0.364x 234.2 13.0x17.3 9.7x13.0 0.370x 230.5 12.7x17.0 9.5x12.7 0.377x 211.2 11.5x15.3 8.6x11.5 0.418x 186.8 9.9x13.2 7.4x9.9 0.485x 168.0 8.7x11.6 6.5x8.7 0.553x 153.6 7.7x10.3
92.7 120.0x160.0 90.0x120.0 0.040x
95.2 80.0x106.7 60.0x80.0 0.060x 33.2 35.6x47.4 26.7x35.6 0.135x
91.0 48.0x64.0 36.0x48.0 0.100x 57.3 32.2x43.0 24.2x32.2 0.149x 40.3 24.2x32.3 18.2x24.2 0.198x 30.2 19.5x26.0 14.6x19.5 0.246x
100.2 19.2x25.6 14.4x19.2 0.250x 92.7 17.8x23.7 13.3x17.8 0.270x 86.5 16.6x22.1 12.5x16.6 0.289x 80.7 15.5x20.7 11.7x15.5 0.309x 76.0 14.6x19.5 11.0x14.6 0.328x 55.4 10.8x14.3 8.1x10.8 0.446x 37.9 7.5x10.0
88.9 32.0x42.7 24.0x32.0 0.150x 70.8 26.2x35.0 19.7x26.2 0.183x 58.0 22.1x29.5 16.6x22.1 0.217x 48.9 19.2x25.6 14.4x19.2 0.250x 41.9 17.0x22.6 12.7x17.0 0.283x
86.6 21.8x29.1 16.4x21.8 0.220x 77.3 19.7x26.2 14.8x19.7 0.244x 69.7 17.9x23.9 13.4x17.9 0.268x 63.4 16.4x21.9 12.3x16.4 0.292x 57.8 15.1x20.2 11.4x15.1 0.317x 37.4 10.4x13.9 7.8x10.4 0.461x
508.2 96.0x128.0 72.0x96.0 0.050x 362.5 68.6x91.4 51.4x68.6 0.070x 284.7 53.9x71.9 40.4x53.9 0.089x 232.1 44.0x58.7 33.0x44.0 0.109x 197.4 37.5x50.0 28.1x37.5 0.128x 101.9 19.5x26.0 14.6x19.5 0.246x 55.9 10.9x14.5 8.1x10.9 0.442x
480.0x640.0 360.0x480.0 0.010x
480.0x640.0 360.0x480.0 0.010x 62.4 56.5x75.3 42.4x56.5 0.085x
160.0x213.3 120.0x160.0 0.030x 118.3 60.8x81.0 45.6x60.8 0.079x 68.6 37.5x50.0 28.1x37.5 0.128x 46.8 27.3x36.4 20.5x27.3 0.176x
160.0x213.3 120.0x160.0 0.030x 227.1 76.2x101.6 57.1x76.2 0.063x 143.6 49.5x66.0 37.1x49.5 0.097x 104.3 36.9x49.2 27.7x36.9 0.130x 80.9 29.4x39.3 22.1x29.4 0.163x
120.0x160.0 90.0x120.0 0.040x 316.1 75.0x100.0 56.3x75.0 0.064x 227.8 54.5x72.7 40.9x54.5 0.088x 177.4 42.9x57.1 32.1x42.9 0.112x 143.6 35.0x46.7 26.3x35.0 0.137x 66.1 17.1x22.8 12.8x17.1 0.281x
60.0x80.0 45.0x60.0 0.080x 315.8 49.5x66.0 37.1x49.5 0.097x 272.0 42.5x56.6 31.9x42.5 0.113x 237.3 36.9x49.2 27.7x36.9 0.130x 210.6 32.7x43.5 24.5x32.7 0.147x 128.0 19.4x25.9 14.6x19.4 0.247x 79.2 11.6x15.5 8.7x11.6 0.413x 58.3 8.3x11.0
16.0x21.3 12.0x16.0 0.300x 137.6 15.3x20.4 11.5x15.3 0.314x 132.6 14.6x19.5 10.9x14.6 0.329x 128.2 14.0x18.7 10.5x14.0 0.343x 124.2 13.4x17.9 10.1x13.4 0.357x 105.2 10.8x14.4 8.1x10.8 0.443x 86.0 8.2x10.9
48.0x64.0 36.0x48.0 0.100x 468.3 43.6x58.2 32.7x43.6 0.110x 428.3 39.7x52.9 29.8x39.7 0.121x 397.7 36.6x48.9 27.5x36.6 0.131x 371.5 34.0x45.4 25.5x34.0 0.141x 266.4 23.6x31.5 17.7x23.6 0.203x 186.1 15.7x20.9 11.8x15.7 0.306x 146.2 11.7x15.6 8.8x11.7 0.409x 122.1 9.4x12.5 7.0x9.4 0.513x 106.3 7.8x10.4
32.0x42.7 24.0x32.0 0.150x 505.5 30.6x40.8 22.9x30.6 0.157x 485.3 29.3x39.0 22.0x29.3 0.164x 469.4 28.2x37.6 21.2x28.2 0.170x 452.2 27.1x36.2 20.3x27.1 0.177x 373.6 22.0x29.4 16.5x22.0 0.218x 293.8 16.8x22.5 12.6x16.8 0.285x 243.8 13.6x18.1 10.2x13.6 0.353x 210.4 11.4x15.2 8.6x11.4 0.420x 185.8 9.8x13.1 7.4x9.8 0.488x 167.3 8.6x11.5 6.5x8.6 0.556x 153.0 7.7x10.3 5.8x7.7 0.623x 141.3 6.9x9.3 5.2x6.9 0.691x 131.8 6.3x8.4 4.7x6.3 0.758x 123.8 5.8x7.7 4.4x5.8 0.826x
1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag. WD 1/2" 1/3" Mag.
0
Manual（Lock Screw M2） Visible C-Mount 17.526 mm 2/3" M 27 P = 0.5 47 g φ30.5（max.）x L ＝ 32 mm
0.5
1
35 mm 1：1.9 0.3x ～ 0.5x
VS-LDA35
0.30x 23.7 x 28.0 16.0 x 21.3 12.0 x 16.0 142.9 mm 196.9 mm 2.5 2.2 mm 0.02 %
0.35x 20.3 x 24.0 13.7 x 18.3 10.3 x 13.7 126.2 mm 182.0 mm 2.6 1.7 mm 0.01 %
0.40x 17.8 x 21.0 12.0 x 16.0 9.0 x 12.0 113.7 mm 171.2 mm 2.7 1.4 mm 0.01 %
0.50x 14.2 x 16.8 9.6 x 12.8 7.2 x 9.6 96.1 mm 157.1 mm 2.9 0.9 mm 0.00 %
1.5
2
Manual（Lock Screw M2） Visible C-Mount 17.526 mm 2/3" M 27 P = 0.5 58 g φ30.5（max.）x L ＝ 36.5（0.30x）～ 43.5（0.50x）mm
5
10
6.4x8.5 0.563x 52.1 6.6x8.8 4.9x6.6 0.730x 44.5 5.4x7.1 4.0x5.4 0.897x 39.3 4.5x6.0 3.4x4.5 1.063x 35.4 3.9x5.2 2.9x3.9 1.230x 32.5 3.4x4.6 2.6x3.4 1.397x
6.2x8.2 0.585x 74.2 6.6x8.8 4.9x6.6 0.728x 66.3 5.5x7.3 4.1x5.5 0.871x 60.6 4.7x6.3 3.6x4.7 1.014x 56.4 4.2x5.5 3.1x4.2 1.156x 53.0 3.7x4.9 2.8x3.7 1.299x 50.4 3.3x4.4 2.5x3.3 1.442x 48.2 3.0x4.0 2.3x3.0 1.584x 46.4 2.8x3.7 2.1x2.8 1.727x
5.6x7.5 0.642x
50 mm 1：2.5 0.10x ～ 0.25x
VS-LDA50
15
6.4x8.6 0.559x 100.7 7.2x9.7 5.4x7.2 0.663x 90.9 6.3x8.4 4.7x6.3 0.766x 83.4 5.5x7.4 4.1x5.5 0.869x 77.5 4.9x6.6 3.7x4.9 0.972x 72.7 4.5x6.0 3.3x4.5 1.075x 68.8 4.1x5.4 3.1x4.1 1.178x 65.5 3.7x5.0 2.8x3.7 1.281x
6.2x8.3 0.580x 46.7 6.4x8.6 4.8x6.4 0.747x 39.4 5.3x7.0 3.9x5.3 0.913x 34.3 4.4x5.9 3.3x4.4 1.080x 30.6 3.8x5.1 2.9x3.8 1.247x
0.10x 71.0 x 84.0 48.0 x 64.0 36.0 x 48.0 512.4 mm 574.9 mm 2.7 0.03 %
0.15x 47.3 x 56.0 32.0 x 42.7 24.0 x 32.0 350.8 mm 415.7 mm 2.8 0.02 %
0.20x 35.5 x 42.0 24.0 x 32.0 18.0 x 24.0 270.0 mm 337.4 mm 2.9 0.01 %
0.25x 28.4 x 33.6 19.2 x 25.6 14.4 x 19.2 221.5 mm 291.3 mm 3.1 0.00 %
20
5.8x7.7 0.620x 141.8 7.0x9.3 5.2x7.0 0.688x 132.1 6.3x8.5 4.8x6.3 0.756x 124.1 5.8x7.8 4.4x5.8 0.823x 117.3 5.4x7.2 4.0x5.4 0.891x 111.5 5.0x6.7 3.8x5.0 0.958x 106.4 4.7x6.2 3.5x4.7 1.026x
25
Manual（Lock Screw M2） Visible C-Mount 17.526 mm 2/3" M 27 P = 0.5 76 g φ30.5（max.）x L ＝ 45.0（0.10x）～ 52.3（0.25x）mm
5.8x7.8 0.616x 95.1 6.7x8.9 5.0x6.7 0.719x 86.6 5.8x7.8 4.4x5.8 0.822x 80.0 5.2x6.9 3.9x5.2 0.925x 74.8 4.7x6.2 3.5x4.7 1.028x 70.5 4.2x5.7 3.2x4.2 1.131x
30
35
75 mm 1：3.8 0.15x ～ 0.35x
VS-LDA75
0.15x 47.3 x 56.0 32.0 x 42.7 24.0 x 32.0 527.5 mm 616.0 mm 4.1 0.03 %
0.20x 35.5 x 42.0 24.0 x 32.0 18.0 x 24.0 404.2 mm 496.4 mm 4.2 0.02 %
0.30x 23.7 x 28.0 16.0 x 21.3 12.0 x 16.0 280.9 mm 380.5 mm 4.4 0.00 %
0.35x 20.3 x 24.0 13.7 x 18.3 10.3 x 13.7 245.6 mm 348.9 mm 4.5 -0.01 %
40
45
Manual（Lock Screw M2） Visible C-Mount 17.526 mm 2/3" M 27 P = 0.5 92 g φ30.5（max.）x L ＝ 71.0（0.15x）～ 85.8（0.35x）mm
50
Description of the table (mm)
VS-LDA○○ （f ） ∞～500mm
Model Focal Length Focus WD
Extension Tube (mm)
Object Distance (mm) The distance between the object and the front of the lens
130 24x32 19x25 0.20x
103 18x24 14x19 0.25x
1/2" 1/3" Mag.
FOV with a 1/2" sensor FOV with a 1/3" sensor Optical Magnification
5
Length of Extension Tube (t)
54
55
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