A powerful multifunctional composite microscope used to view small details of sample slides; Very suitable for clinical doctors, high school and university science students, as well as passionate hobbyists.
The professional Siedentopf binocular telescope lens is fully rotatable and can be used together. It is equipped with interchangeable wide field 10X and 25X glass eyepieces, fixed at an ergonomic 30 degree tilt to reduce neck strain and easily adapt to different pupil distances without losing focus
Four DIN achromatic objectives installed in the rotating turret provide six magnification levels: 40X, 100X, 250X, 400X, 1000X, and 2500X
Bright LED bulbs transmit light through a manually adjustable Abbe condenser, illuminating sliding specimens from below with adjustable brightness; Double layer mechanical stage with large surface area and optimized safety sliding bracket slide presentation viewing
The handle helps users carry this sturdy microscope
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| Model |
SW350T |
| Head |
360° rotatable binocular Siedentopf |
| Inclination |
30° |
| Eyepieces |
Wide-field 10X and 25X pairs |
| Interpupillary distance |
48-75mm |
| Diopter adjustment |
On left tube, +/-5dp |
| Nosepiece |
Quadruple revolving |
| Objectives |
Achromatic
4X, NA 0.1, working distance 37.5mm
10X, NA 0.25, working distance 7.35mm
40X(Spring), NA 0.65, working distance 0.29mm
100X (Spring, Oil), NA 1.25, working distance 0.18mm |
| Magnifications |
40X, 100X, 250X, 400X, 1000X and 2500X |
| Stage |
Double-layered mechanical stage with slide holder |
| Stage size |
130mmx130mm |
| Stage X-Y range |
70mmx30mm |
| Upper limit stop |
Rack stop preset but adjustable |
| Condenser |
NA 1.25 with iris diaphragm, swing-in and swing-out filter holder |
| Focusing |
Coaxial coarse and fine focusing system |
| Illumination |
Built-in 1W LED transmitted illumination with intensity control |
| Power |
110-240V AC adapter (included) |
Assembly and set up
Carefully remove the microscope from the box and set it on a sturdy, flat surface. Remove the plastic covers from the eyepiece holders on the microscope's head, then place eyepieces into the holders. You may choose at this time to insert the eyepiece adapter into the trinocular camera port on the top of the microscope and place either a third eyepiece into it or mount an eyepiece camera (not included). Locate the power adapter and attach it to the microscope, then plug it in. Turn the microscope on by pressing the power button on the back of the base.
Using the microscope
Turn the microscope on and use the illumination intensity control wheel to set the lamp on the lowest brightness setting.
Clip a slide into the slide holder on the stage. Use the X-Y translational control knobs on the right side of the stage to move the stage front to back or the slide holder left to right to center the specimen over the bulb.
Move the binocular eyepieces closer together or further apart until you see one image when you look through them. Adjust the bulb brightness to a comfortable intensity with the dimmer wheel.
Always start with the lowest power objective lens, in this case the 4X objective, centered over the stage. Look through the eyepieces and bring the image into focus by slowly turning the larger coarse adjustment focus knob to bring the stage closer to the objective. Once an image forms, switch to the blue fine adjustment focus knob to fine-tune for clarity or to see the various layers of the specimen you are examining. You may also use the diopter adjustment control on the eyepiece holder at this time to further fine-tune image clarity. Look at other parts of the slide by using the X-Y translational control knobs to move the slide holder once the specimen is in focus.
Increase magnification by rotating the nosepiece clockwise to a higher magnification objective, taking care not to strike the slide with the objective, as doing so may damage the glass on the slide, the objective, or both. If you cannot move the objective into place without making contact with the slide, use the coarse focus knob to move the stage down and away to make room before changing magnification.
Adjust the focusing ring on the iris aperture diaphragm to change the resolution of the image. The condenser can be manually moved closer to or farther from the stage by rotating the metal knob.
For best results with the 100X objective, use the included immersion oil. Rotate the nosepiece so that the 100X objective is near, but not on the specimen slide. Then place a drop of the included immersion oil onto the cover slip. Slowly rotate the 100X objective into place so that it comes into contact with the immersion oil. Adjust focus until your specimen comes clearly into view. (Note: Immediately after use, always gently wipe the oil off of the objective lens and the cover slip with lens paper moistened with a small amount of ethyl or isopropyl alcohol. Do not use immersion oil with the 4X, 10X, or 40X objectives.)
The swing-in and swing-out filter holder is at the bottom of Abbe condenser. Swing it out and place a 32mm diameter filter into it, taking care that dust, dirt and fingerprints do not get on the filter and the field lens.
Mounting a camera attachment
Place the eyepiece adapter into the trinocular camera port on the top of the microscope and mount an eyepiece camera (not included) directly on it. If you would like to use a C-mount camera (not included), unscrew the top ring from the eyepiece adapter. You can then use it as a 1X C-mount for the camera.
The parfocality between the eyepieces and the trinocular port has been preset before shipment and should not need adjustment. If necessary, however, you can rotate the parfocal ring in the eyepiece adapter to adjust the adapter height position and resulting parfocality.
Warranty information and customer support
Our microscopes are manufactured to meet ISO 9001 standards. Warranties are as follows:
Five (5) Year Warranty for Microscopes: Microscopes come with a five (5) year warranty against manufacturing defects. Does not cover normal wear, routine maintenance, add-on accessories, damage resulting from repair by unauthorized parties, accident, alteration, shipping, misuse or abuse is not covered.
One (1) Year Warranty for Electrical and Video components. Does not cover light bulbs, batteries, fuses, or electrical cords.
All warranties start from the original date of purchase. We provides the repair or
replacement of warrantied parts for free, including labor, during the warranty period.
Proof of original purchase is required. Buyers are responsible for shipping to and from
our warehouse for warranty services. The warranty does not cover damages resulting
from normal wear and tear, abuse, or unauthorized repairs.
Disclaimer: We are constantly working to improve our instruments and to adapt them in response to customer feedback. These improvements occasionally involve small modifications to the mechanical structure and optical design of our microscopes. Therefore, some descriptions, illustrations, and specifications in this instruction manual may vary slightly from the microscope you receive.
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