This compound microscope is used to study stained slides, cells and micro-organisms in school, college and training labs. A rack-and-pinion 1.25 N.A. Abbe condenser with iris diaphragm controls the light, a built-in mechanical stage moves the slide, and a cool LED in the base runs from rechargeable NiMH batteries or the AC charger/adapter included with it.
| Parameter | Detail |
|---|---|
| Head | 360° rotating, inclined at 45° |
| Eyepiece | Locked-on 10x widefield, with calibrated pointer |
| Objectives | Achromatic, parcentred and parfocal |
| Stage and focusing | Built-in mechanical stage; separate coarse and fine rack-and-pinion focus with positive stops at both ends of stage travel |
| Condenser | Rack-and-pinion adjustable 1.25 N.A. Abbe condenser with iris diaphragm |
| Illumination | Cool LED built into the base, on/off switch and light intensity control; LED life 10,000 hours |
| Power | Rechargeable NiMH batteries; AC charger/adapter included |
| Size (H × W × D) | 29.2 × 15.2 × 24.1 cm (11-1/2 × 6 × 9-1/2 in) |
| Weight | About 4.5 kg (10 lb) |
| Product code | SLE/M/51 |
| Minimum order | 10 units |
| Dispatch | Usually within 7 to 10 working days |
| Supplied by | ScienceLab (Jain Scientific Equipments Pvt Ltd), Ambala, India |
Onion skin cells. Lay a thin strip of onion skin in a drop of iodine on a glass microscope slide and lower a cover glass at an angle so no air is trapped. Find the cells on low power, then close the iris slightly so the pale cell walls stand out.
Pond water organisms. Place a drop of pond water in a depression slide so ciliates and algae have room to swim. The LED stays cool and does not warm the drop, and the mechanical stage knobs let students follow a moving cell across the field.
Stages of mitosis. Put an Allium root tip slide from the Cell Division Slide Set of 9 on the stage and locate the dividing zone at low power. Because the objectives are parfocal, students can switch to a higher power with a small turn of the fine knob and count cells in each stage.
Open the iris wider as you move to higher-power objectives, and close it down for low power or for pale, unstained cells. Closing it adds contrast and depth of focus, but closing it too far dims the field and blurs fine detail, so adjust until the outline is sharp.
Check the light intensity control first, then the condenser and the iris. Raise the Abbe condenser close to the underside of the slide and open the iris. If the light fades during a long session, the NiMH batteries need recharging on the AC charger/adapter.
Low power gives the widest field and the most room between lens and slide, so the specimen is easy to find and hard to crash into. Focus with the coarse knob, refine with the fine knob, centre the area of interest, and only then change to a higher power.
Parfocal objectives stay nearly in focus when you change from one to another, so only a small fine-knob correction is needed. Parcentred objectives keep a centred object in the middle of the field. Together they stop beginners losing the specimen every time they switch power.
Divide the size of the drawing by the real size of the specimen, with both in the same unit, so convert millimetres to micrometres first where needed. The microscope's total magnification is a separate figure: the 10x eyepiece power times the power marked on the objective in use.
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Last updated: 14 November 2026