| BX61 | BX51 | BX51M | ||
| Optical System | UIS2 optics(infinity-corrected) | |||
| Microscope frame | Illumination | Reflected/transmitted | Reflected | |
| External 12V100W light source | Built-in 12V100W light source |
Built-in 12V100W light source | ||
| Light preset switch | ||||
| LED voltage indicator | ||||
| Reflected?/?transmitted changeover switch | - | |||
| Focus | Motorized focusing | Stroke 25mm | ||
| Stroke 25mm | Fine stroke per rotation 100?m | |||
| Minimum graduation 0.01?m | Minimum graduation 1?m | |||
| - | With upper limit stopper, torque adjustment for coarse handle |
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| Maximum Sample Height | 25mm (w?/?o spacer) | 65mm (w?/?o spacer) | ||
| Observation tubes |
Widefield (F.N. 22) |
Inverted image: binocular, trinocular, tilting binocular Erect image: trinocular, tilting binocular |
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| Super widefield (F.N. 26.5) |
Inverted image: trinocular Erect image: trinocular, tilting trinocular |
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| Reflected light illumination | Reflected BF/DIC/KPO or BF?/?DF?/ DIC?/?KPO |
BX-RLAA | BX-RLA2 | |
| Motorized BF?/?DF changeover Motorized AS |
100W halogen (high intensity burner, fiber illuminator mountable) BF?/?DF?/?DIC?/?KPO FS, AS (with centering mechanism), BF/DF interlocking ND filter |
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| Reflected fluorescence | BX-RFAA | BX-URA2 | ||
| Motorized 6 position turret Built-in motorized shutter With FS, AS |
100W mercury lamp, 75W xenon lamp 50W metal halide lamp 6 position mirror unit turret (standard: WB, WG, WU+BF etc) with FS, AS (with centering mechanism), with shutter mechanism |
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| Transmitted light | 100W halogen | - | ||
| Abbe?/?long working distance condensers | ||||
| Built-in transmitted light filters (LBD, ND25, ND6) | ||||
| Revolving nosepieces | For BF | Motorized sextuple, centering quintuple | Sextuple, centering sextuple, septuple (motorized sextuple: optional) | |
| For BF?/?DF | Motorized quintuple | Quintuple,centering quintuple, sextuple (motorized quintuple optional) | ||
| Stages | Coaxial left(right) handle stage: 76(X)x52(Y)mm, with torque adjustment | |||
| Large-size coaxial left (right) handle stage: 100(X)x105(Y)mm, with lock mechanism in Y axis | ||||