SBLV-U21
| Optical system | Infinity color corrected optical system |
| Viewing head | Efficient infinity gemel binocular head, 30°-60° elevation adjustable; 360° rotatable; interpupillary adjustable distance: 54-75mm; diopter +/-5 adjustable. |
| 30° inclined gemel binocular head; 360° rotatable; interpupillary adjustable distance: 54-75mm; diopter +/-5 adjustable. | |
| 30° inclined gemel trinocular head, splitting ratio R:T=50:50; 360° rotatable; interpupillary adjustable distance: 54-75mm; diopter +/-5 adjustable. | |
| 30° inclined gemel trinocular head (special for fluorescence), splitting ratio R:T=100:0 or 0:100; 360° rotatable; interpupillary adjustable distance: 54-75mm; diopter +/-5 adjustable. | |
| 30° inclined digital binocular head; 360° rotatable; interpupillary adjustable distance: 54-75mm; diopter +/-5 adjustable. | |
| Eyepiece | High eye-point wide field plan eyepiece PL10x22mm, reticle can be assembled. |
| High eye-point wide field plan eyepiece PL15x16mm | |
| Objective | Infinity plan achromatic objectives (2X,4X,10X,20X,40X,100X) |
| Infinity plan phase contrast objectives (10X,20X,40X,100X) | |
| Infinity plan semi-apochromatic fluorescence objectives (4X,10X,20X,40X,100X) | |
| Nosepiece | Revolving quadruple nosepiece/ quintuple nosepiece |
| Body | Coaxial focus system with upper limited and tension adjustment; coarse range: 30mm; fine precision: 0.002mm; focus height adjustable. |
| Stage | 175x145mm double layer mechanical stage, rotatable; with special fabrication processing, anti-corrosive and anti-friction; X,Y moving hand wheel in right or left hand; moving range: 76x50mm, precision : 0.1mm. |
| 187x166mm double layer mechanical stage, moving range: 80x50mm, precision: 0.1mm. | |
| Condenser | N.A.0.9 swing-out type achromatic condenser； |
| N.A.1.2/0.22 swing-out type achromatic condenser； | |
| N.A.1.25 quintuple phase contrast condenser； | |
| N.A.0.9 dry dark field condenser； | |
| N.A.1.25 oil dark field condenser. | |
| Transmitted illumination system | Wide voltage: 100-240V, built-in transmitted Koehler illumination; |
| 6V/30W halogen, pre-centered, intensity adjustable. | |
| Polarizing kit | Analyzer 360° rotatable; polarizer and analyzer can be out of light path. |
| Filter | Yellow, green, blue, neutral filter |
| Light splitting device | R:T=70:30 or 100:0, special 1x CTV |
| Camera adapter | 0.5xCTV, 0.67xCTV, 1xCTV |
