Table for WD, FOV and Extension Tube Length (Reference)
Focal Length (f) Maximum Aperture Ratio Aperture Angle of View (1/1.8") M.O.D TV Distortion (1/1.8") Operation of Iris & Focus Wavelength Mount Flange Back Sensor Size (max.) Filter Thread Weight (approx.) Dimension Focal Length (f) Maximum Aperture Ratio Aperture Angle of View (2/3") M.O.D TV Distortion (2/3") Operation of Iris & Focus Wavelength Mount Flange Back Sensor Size (max.) Filter Thread Weight (approx.) Dimension Focal Length (f) Maximum Aperture Ratio Aperture Angle of View (2/3") M.O.D TV Distortion (2/3") Operation of Iris & Focus Wavelength Mount Flange Back Sensor Size (max.) Filter Thread Weight (approx.) Dimension Focal Length (f) Maximum Aperture Ratio Aperture Angle of View (1/1.8") M.O.D TV Distortion (1/1.8") Operation of Iris & Focus Wavelength Mount Flange Back Sensor Size (max.) Filter Thread Weight (approx.) Dimension
16 mm 1：1.8
VS-1618VM
F1.8 ～ Close 18.8°x 24.6°
Exten- sion Tube (mm)
VS-0620VM
VS-0818VM
VS-1218VM VS-1618VM VS-2518VM VS-3518VM VS-5026VM
Model Focal Length Focus WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag. WD 1/1.8" 1/2" Mag.
100 mm -0.14 % Manua（l Lock screw M2） Visible C-Mount 17.526 mm 1/1.8" M 27 P = 0.5 58 g φ29.5（max.）x L ＝ 39.5 mm
f6 ∞～100
f8 ∞～100
f12 ∞～100
f16 ∞～100
f25 ∞～250
f35 ∞～250
f50 ∞～400
100 98.2 x 129.1 87.3 x 116.4 0.055x
100 75.0 x 98.6 66.7 x 88.9 0.072x
100 50.9 x 67.0 45.3 x 60.4 0.106x
100 36.0 x 47.3 32.0 x 42.7 0.150x
250 55.7 x 73.2 49.5 x 66.0 0.097x
250 38.6 x 50.7 34.3 x 45.7 0.140x
400 39.4 x 51.8 35.0 x 46.7 0.137x
0
375.0 36.7x48.3 32.7x43.5 0.147x 353.4 34.4x45.2 30.6x40.8 0.157x 334.3 32.3x42.5 28.7x38.3 0.167x 317.4 30.5x40.1 27.1x36.2 0.177x 245.9 22.8x30.0 20.3x27.0 0.237x 183.3 16.0x21.1 14.2x19.0 0.337x 149.4 12.4x16.2 11.0x14.6 0.437x 128.1 10.1x13.2 8.9x11.9 0.537x 113.4 8.5x11.1 7.5x10.0 0.637x 102.8
5034.2 540.0x710.0 480.0x640.0
226.7 35.1x46.1 31.2x41.6 0.154x 207.9 32.1x42.3 28.6x38.1 0.168x 190.9 29.5x38.8 26.2 x 35.0 0.183x 177.4 27.4x36.0 24.4x32.5 0.197x 123.8 19.1x25.1 17.0x22.6 0.283x 82.4 12.6x16.6 11.2x15.0 0.427x 61.9 9.5x12.4 8.4x11.2 0.571x 49.6
63.5 66.7x87.7 59.3x79.0 0.081x
32.7 39.7x52.2 35.3x47.1 0.136x
119.7 88.5x116.4 78.7x104.9 0.061x
47.1 40.6x53.4 36.1x48.1 0.133x
283.0 131.7x173.2 117.1x156.1 0.041x 134.0
68.1 36.7x48.3 32.7x43.5 0.147x 50.0 28.7x37.8 25.5x34.0 0.188x 38.3 23.6x31.0 21.0x27.9 0.229x 30.2 20.0x26.3 17.8x23.7 0.270x
518.0 174.2x229.0 154.8x206.5 0.031x 258.7 88.5x116.4 78.7x104.9 0.061x 168.5
81.6 30.0x39.4 26.7x35.6 0.180x 68.3 25.6x33.6 22.7x30.3 0.211x 58.6 22.4x29.5 19.9x26.6 0.241x 50.9 19.9x26.1 17.6x23.5 0.272x
1257.0 270.0x355.0 240.0x320.0 0.020x 638.1 138.5x182.1 123.1x164.1 0.039x 417.3 91.5x120.3 81.4x108.5 0.059x 308.2 68.4x89.9 60.8x81.0 0.079x 115.6
205.6 46.6x61.2 41.4x55.2 0.116x 173.4 39.7x52.2 35.3x47.1 0.136x 149.5 34.6x45.5 30.8x41.0 0.156x 131.8 30.9x40.6 27.4x 36.6 0.175x 73.3 18.4x24.2 16.4x21.8 0.293x 38.5 11.0x14.5 9.8x13.1 0.490x
2483.1 385.7x507.1 342.9x457.1
0.5
0.010x 2534.6
0.014x 1199.3
270.0x355.0 240.0x320.0
65.9x86.6 58.5x78.0 0.082x 84.3 43.9x57.7 39.0x52.0 0.123x 59.5 32.9x43.3 29.3x39.0 0.164x
186.2x244.8 165.5x220.7 0.029x 809.1 125.6x165.1 111.6x148.8 0.043x 600.1 93.1x122.4 82.8x110.3 0.058x 242.3 37.5x49.3 33.3x44.4 0.144x 121.7
25 mm 1：1.8
VS-2518VM
1
F1.8 ～ Close 12.1°x 15.9°
0.020x 1701.4
250 mm -0.15 % Manua（l Lock screw M2） Visible C-Mount 17.526 mm 1/1.8" M 27 P = 0.5 60 g φ29.5（max.）x L ＝ 29 mm
180.0x236.7 160.0x213.3
58.7x77.2 52.2x69.6 0.092x 124.8 44.3x58.2 39.3x52.5 0.122x
1.5
0.030x 1284.8
135.0x177.5 120.0x160.0 0.040x 534.9
2
54.0x71.0 48.0x64.0 0.100x 284.9 27.0x35.5 24.0x32.0 0.200x 201.6 18.0x23.7 16.0x21.3 0.300x 159.9 13.5x17.8 12.0x16.0 0.400x 134.9 10.8x14.2 9.6x12.8 0.500x 118.3 9.0x11.8 8.0x10.7 0.600x 106.4 7.7x10.1 6.9x9.1 0.700x 97.5 6.8x8.9 6.0x8.0 0.800x 90.5 6.0x7.9 5.3x7.1 0.900x 85.0
27.4x36.0 24.4x32.5 0.197x 51.1 13.7x18.0 12.2x16.2 0.394x
5
35 mm 1：1.8
VS-3518VM
18.8x24.7 16.7x22.2 0.288x 81.5 12.5x16.4 11.1x14.8 0.432x 61.3 9.4x12.3 8.3x11.1 0.576x 49.3 7.5x9.9 6.7x8.9 0.719x 41.3
10
F1.8 ～ Close 11.7°x 13.8°
250 mm -0.12 % Manua（l Lock screw M2） Visible C-Mount 17.526 mm 2/3" M 27 P = 0.5 48 g φ29（max.）x L ＝ 33.5 mm 50 mm 1：2.6 F2.6 ～ Close 8.1°x 9.6° 400 mm 0.01 % Manua（l Lock screw M2） Visible C-Mount 17.526 mm 2/3" M 27 P = 0.5 54 g φ29（max.）x L ＝ 39 mm
15
7.6x9.9 6.7x9.0 0.715x 41.5 6.3x8.3 5.6x7.5 0.859x 35.7 5.4x7.1 4.8x6.4 1.003x 31.3 4.7x6.2 4.2x5.6 1.147x
20
25
VS-5026VM
7.3x9.6 6.5x8.7 0.737x 94.7 6.5x8.5 5.7x7.6 0.837x 88.3 5.8x7.6 5.1x6.8 0.937x 83.2 5.2x6.8 4.6x6.2 1.037x 78.9 4.7x6.2 4.2x5.6 1.137x
6.3x8.2 5.6x7.4 0.863x 35.5 5.4x7.1 4.8x6.4 1.007x
30
35
40
45
5.4x7.1 4.8x6.4 1.000x
50
Description of the table (mm)
VS-○○○○VM （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)
32
33
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