Greenough optical system offers a 6.5:1 zoom ratio and provides exceptional image quality and excellent depth of field. The binocular or trinocular stereo zoom body includes the following:
- Body: Binocular with rugged all-metal body design, rotatable 360°. Trinocular version has a beam splitter that directs light to the right eyetube and trinocular port simultaneously.
- Objective Zoom Range: 0.7x - 4.5x.
- Magnification: 7x - 45x (when using 10x eyepieces - MA502). View the magnification chart below to determine which eyepieces and auxiliary lens you may need.
- Field of View: 32mm at 7x, 5.1mm at 45x.
- Working Distance: 93mm.
- Eyetube Inclination: 45°.
- Interpupillary Distance Adjustment: 54mm - 75mm.
- Dioptric Adjustment: Both eyetubes.
- Extended Magnification Range: 2.1x - 270x.
- Extended Working Distance: 34mm - 251mm (with optional auxiliary lens).
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Meiji Stereo Microscope Magnification Chart
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Aux Lens
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Working Dist. (mm)
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SWF10x Eyepieces
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SWF12.5x Eyepieces
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SWF15x Eyepieces
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SWF20x Eyepieces
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SWF30x Eyepieces
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None
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93
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7x- 45x
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32.8- 5.1
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8.75x- 56.25x
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28.5- 4.4
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10.5x- 67.5x
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22- 3.4
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14x- 90x
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16.4- 2.5
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21x- 135x
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11- 1.7
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0.3x
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251
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2.1x- 13.5x
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109- 17
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2.62x- 16.87x
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95- 14.6
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73- 11.4
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4.2x- 27x
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54.7- 8.5
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6.3x- 40.5x
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36.6- 5.7
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0.44x
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171
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3.08x- 19.8x
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74.5- 11.5
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3.85x- 24.75x
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64.7- 10
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4.62x- 29.7x
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50- 7.7
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6.16x- 39.6x
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37.2- 5.9
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9.24x- 59.4x
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25- 3.8
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0.5x
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148
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3.5x- 22.5x
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65.7- 10.2
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4.37x- 28.12x
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57- 8.8
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5.25x- 33.75x
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44- 6.8
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7x- 45x
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32.8- 5.1
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10.5x- 67.5x
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22- 3.4
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0.75x
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97
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5.25x- 33.75x
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43.8- 6.8
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6.56x- 42.18x
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38- 5.8
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7.87x- 50.62x
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29.3- 4.5
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10.5x- 67.5x
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21.9- 3.4
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15.75x- 101.25x
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14.6- 2.2
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1.5x
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49
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10.5x- 67.5x
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21.9- 3.4
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13.12x- 84.37x
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19- 2.9
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15.75x- 101.25x
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14.6- 2.2
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21x- 135x
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10.9- 1.7
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31.5x- 202.5x
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7.3- 1.1
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2.0x
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33
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14x- 90x
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16.4- 2.5
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17.5x- 112.5x
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14.2- 2.2
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21x- 135x
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11- 1.7
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28x- 180x
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8.2- 1.2
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42x- 270x
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5.5- 0.8
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