levenhuk Rainbow 50L Moonstone Microscope User Manual

: June 5, 2024
: levenhuk

Table of Contents

levenhuk Rainbow 50L Moonstone Microscope
INSTRUCTIONS
General use
The package includes
Using the microscope
Specifications
Care and maintenance
Battery safety instructions
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

levenhuk Rainbow 50L Moonstone Microscope

INSTRUCTIONS

Eyepiece (a Barlow lens 2x is installed into the tube below the eyepiece)
Monocular head (eyepiece tube)
Revolving nosepiece with objectives
Upper illumination
Focusing knob
A/C adapter socket
Upper illumination switch
Specimen holders
Stage
Condenser and diaphragm disk
Lower illumination
Lower illumination switch (not shown)
Base

Caution: Please remember that mains voltage in most European countries is 220–240V. If you want to use your device in a country with a different mains voltage standard, remember that use of a converter is absolutely necessary.

Caution: Children should use the microscope under an adult’s supervision only.

General use

The Levenhuk Rainbow microscope is safe for health, life and property of the consumer
and the environment when properly used, and meets the requirements of international standards. The microscope is designed for observing transparent and opaque objects in the transmitted and reflected light using the bright field method, for biological use and school presentations.
May be used by kids over 5 years old.
The package includes a Levenhuk K50 experiment kit that has everything you need to prepare microscope slides yourself. The detailed guide will teach you how to properly prepare specimens and conduct amazing experiments. The digital camera (for Levenhuk Rainbow D50L PLUS) was exclusively designed for use with this microscope.

The package includes

Microscope
Objectives: 4х, 10х and 40хs
Eyepiece: WF16х (WF10x for 50L model)
2x Barlow lens
Stage with specimen holders
Diaphragm disk
Condenser
Built-in upper and lower LED illumination
A/C Adapter 220V, 50Hz

The Levenhuk K50 experiment kit includes:

“Attractive Microscope. Scrutinizing the Microcosm” User Guide
Forceps
Hatchery for Artemia (brine shrimp)
Microtome
Flask with yeast
Flask with glue
Plastic case
Levenhuk K50 experiment kit
Digital camera 2Mpx (for D50L PLUS model)
Levenhuk image processing software (for D50L PLUS model)
USB cable (for D50L PLUS model)
User manual and warranty
Flask with sea salt
Flask with brine shrimp
Blank glass slides (5 pieces)
5 samples (fly’s limb, onion, cotton stem, slice of a tree trunk, pine)
Pipette
Dust cover

Microscope parts

Base. It supports the weight of the microscope and houses the illumination source, electronics and control mechanisms.

Eyepiece tube. Combines the eyepiece with the objectives system. Holds the eyepiece, Barlow lens (below the eyepiece) or a digital camera (in place of the eyepiece).

Eyepiece and objective. Consist of lenses that allow magnifying the image. The total magnification is calculated by multiplying the eyepiece magnification to the objective magnification.

Barlow lens. Is used with the eyepiece to increase magnification. A 2x Barlow lens increases the magnifying power twice, so you get a wider range of magnifications while using the same eyepieces. Revolving nosepiece. This triple nosepiece with 3 pre-installed objectives allows you to change objectives smoothly and easily.

Stage. A sturdy and reliable stage with two specimen holders can be used to move your slides while observing them. The lower illumination light passes through the opening in the middle of the stage. Diaphragm disk. Is located below the stage and has apertures of various diameters to adjust the passing light rays. Rotate the disk to select the desired aperture.

Condenser. A system of lenses located below the stage allows the gathering and directing of the light rays.

Focusing knob. A coarse focusing system allows moving the stage up and down adjusting the sharpness of the specimen image.
Upper and lower illumination. LED illumination with adjustable brightness. The illumination system can be powered by AA batteries or by A/C. The upper illumination is used to observe opaque objects whereas the lower one allows observing transparent objects. Use the both illuminations to study semi-transparent objects.
A/C adapter socket. Is used to connect the microscope to A/C power.

Using the microscope

Getting started

Unpack the microscope and make sure all parts are available.
Move the stage to the lowermost position using the focusing knob.
Make sure the batteries are correctly installed in the battery compartment; insert new batteries if required. Or, you can connect the microscope to A/C power using the A/C adapter.
Insert the eyepiece into the eyepiece tube.
Slowly adjust the illumination brightness, from dark to light.

Focusing

Place a specimen on the stage and fix it with the holders.
Select the 4x objective rotating the revolving nosepiece.
Move the specimen to place its thickest part exactly under the objective.
Rotate the focusing knob to slowly raise the stage until the objective is close to the specimen; keep checking the distance between the objective and the object to avoid their contact.
CAUTION: The objective should not touch the specimen, otherwise the objective or/and the specimen might be damaged.
Look through the installed eyepiece and lower the stage slowly rotating the focusing knob until you see the specimen image.
Such adjustment protects the frontal lens from contacting the object when you use objectives of other magnifications; though, slight refocusing might be required.
If the image is too bright, rotate the diaphragm disk until the passing light ray is reduced to a comfortable brightness level. If the image is too dark, select a larger aperture to increase the light ray.

Selecting the objective
Start your observations with the lowest magnification objective and select a specimen segment
for detailed research. Then move the specimen to center the selected segment in the field of view,
to make sure it keeps centered when the objective is changed to a more powerful one. Once the segment is selected, you should center its image in the microscope’s field of view as precisely as possible. Otherwise, the desired segment might fail to center in the field of view of the higher power objective. Now you can switch to a more powerful objective by rotating the revolving nosepiece. Adjust the image focus if required.

Digital camera
The digital camera is installed in the eyepiece tube in place of the eyepiece. It allows to observe specimens in fine detail and true colors on your PC monitor and save images on the hard drive. Levenhuk software allows viewing and editing the object images.

Megapixels	2.0
Video recording option	+
Mounting location	eyepiece tube (replaces the eyepiece)
Image format	.bmp, .jpg, .jpeg, .png, .tif, .tiff, .gif, .psd, *.ico,

*.emf, etc.
Exposure| ERS
White balance| auto/manual
Exposure control| auto/manual
Software| Levenhuk
Software image control| image size, brightness, exposure control
Port| USB 2.0, 480Mb/s
System requirements| Windows XP (32 bit), Windows Vista/7/8/10/11 (32 and 64 bit), Mac OS X, Linux, processor up to 2.8GHz Intel Core 2 or higher, USB 2.0 port
---|---
Camera power supply| USB cable

Specifications

	50L	50L PLUS	D50L PLUS
Type	biological	biological	digital
Magnification, x	40–800	64–1280	64–1280
Head	monocular, rotatable 360°, inclined 45°
Optics material	optical glass
Body material	plastic	metal	metal
Eyepiece tube diameter, mm	23.2
Eyepieces	WF10x	WF16x	WF16x
Revolving nosepiece	3 objectives
Objectives	4х, 10х, 40хs (spring)
Barlow lens	2x
Stage, mm	90×90, with specimen holders
Stage moving range, mm	0–11, vertical
Focusing	coarse
Condenser	NA 0.65, diaphragm disk (6 apertures)
Illumination	upper and lower LED illumination with adjustable brightness
Power source	220V 50Hz, or 2*АА batteries
Plastic case	+
Levenhuk K50 experiment kit	+
Digital camera	–	–	+

Levenhuk reserves the right to modify or discontinue any product without prior notice.
Note:
The Levenhuk K50 experiment kit is supplied without an individual plastic case.

Care and maintenance

Never, under any circumstances, look directly at the Sun, another bright source of light or at a laser through this device, as this may cause PERMANENT RETINAL DAMAGE and may lead to BLINDNESS. Take necessary precautions when using the device with children or others who have not read or who do not fully understand these instructions. After unpacking your microscope and before using it for the first time check for integrity and durability of every component and connection. Do not try to disassemble the device on your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center. Protect the device from sudden impact and excessive mechanical force. Do not apply excessive pressure when adjusting focus. Do not overtighten the locking screws. Do not touch the optical surfaces with your fingers. To clean the device exterior, use only special cleaning wipes and special optics cleaning tools from Levenhuk. Do not use any corrosive or acetone-based fluids to clean the optics. Abrasive particles, such as sand, should not be wiped off lenses, but instead blown off or brushed away with a soft brush. Do not use the device for lengthy periods of time, or leave it unattended in direct sunlight. Keep the device away from water and high humidity. Be careful during your observations, always replace the dust cover after you are finished with observations
to protect the device from dust and stains. If you are not using your microscope for extended periods of time, store the objective lenses and eyepieces separately from the microscope. Store the device in a dry, cool place away from hazardous acids and other chemicals, away from heaters, open fire and other sources of high temperatures. When using the microscope, try not to use it near flammable materials or substances (benzene, paper, cardboard, plastic, etc.), as the base may heat up during use, and might become a fire hazard. Always unplug the microscope from a power source before opening the base or changing the illumination lamp. Regardless of the lamp type (halogen or incandescent), give it some time to cool down before trying to change it, and always change it to a lamp of the same type. Always use the power supply with the proper voltage, i.e. indicated in the specifications of your new microscope. Plugging the instrument into a different power outlet may damage the electric circuitry of the microscope, burn out the lamp, or even cause a short circuit. Children should use the device under adult supervision only. Seek medical advice immediately if a small part or
a battery is swallowed.

Battery safety instructions

Always purchase the correct size and grade of battery most suitable for the intended use. Always replace the whole set of batteries at one time; taking care not to mix old and new ones or batteries of different types. Clean the battery contacts and also those of the device prior to battery installation. Make sure the batteries are installed correctly with regard to polarity (+ and –). Remove batteries from equipment that is not to be used for an extended period of time. Remove used batteries promptly. Never short-circuit batteries as this may lead to high temperatures, leakage, or explosion. Never heat batteries in order to revive them. Do not disassemble batteries. Remember to switch off devices after use. Keep batteries out of the reach of children, to avoid risk of ingestion, suffocation, or poisoning. Utilize used batteries as prescribed by your country’s laws.

Levenhuk International Lifetime Warranty
All Levenhuk telescopes, microscopes, binoculars and other optical products, except for accessories, carry a lifetime warranty against defects in materials and workmanship. A lifetime warranty is a guarantee on the lifetime of the product on the market. All Levenhuk accessories are warranted to be free of defects in materials and workmanship for six months from date of retail purchase. Levenhuk will repair or replace such product or part thereof which, upon inspection by Levenhuk, is found to be defective in materials or workmanship.
As a condition to the obligation of Levenhuk to repair or replace such product, the product must be returned to Levenhuk together with proof of purchase satisfactory to Levenhuk.
For further details, please visit our web site: www.levenhuk.com/warranty
If warranty problems arise, or if you need assistance in using your product, contact the local Levenhuk branch.