The Levenhuk Rainbow 50L PLUS microscope would make the perfect gift for a curious teenager, a biology student or a laboratory technician. This instrument’s maximum magnification is 1280x – enough to see the finest details of the samples being observed under the microscope. The model features a robust and reliable body – the Rainbow 50L PLUS microscope can be used as a home microscope, as well as for laboratory work in schools and universities.
Quality of the optical
components
Three objective lenses provide magnifications of 64x, 160x and 640x. The 40x objective lens has a special spring mechanism. Whilst focusing, you might accidentally touch the specimen being observed with the objective lens. However, the spring-loaded lens will retract slightly, preventing any damage. The kit also includes 2x Barlow lenses, which double the magnification of any given objective lens. The basic kit allows you to achieve a magnification of 1280x!
The lenses are made from high-quality coated glass with a special anti-reflective treatment. The images produced will always be sharp, high-contrast and crystal-clear.
Universal LED
Illumination System
The microscope is fitted with an LED light source. To observe transparent specimens such as small plant parts or tiny crustaceans, use lower illumination. Top illumination is used for opaque objects – paper fibre, coins and many other interesting items. Semi-transparent objects are best viewed using both top and bottom illumination. The adjustable brightness allows you to select the ideal amount of light for each specimen.
Ergonomic
body
The microscope stands out for its modern, ergonomic design. The microscope’s robust metal body ensures a long service life. The monocular head, tilted at 45 degrees, allows for the most comfortable viewing position and prevents fatigue, even after several hours of work. Furthermore, the head rotates 360 degrees around its axis, which is particularly convenient for group work. The lighting is powered by mains electricity or batteries, should you wish to carry out research outdoors.
Warning: Please refer to the specifications table for the correct mains voltage and never attempt to plug a 110 V device into a 220 V socket, or vice versa, without using a converter. Remember that the mains voltage in the United States and Canada is 110 V, and 220–240 V in most European countries.
Carrying out experiments with the microscope
The microscope is fantastic for both experienced users and complete beginners. The Levenhuk K50 Experiment Kit will help them carry out their first experiments and learn lots of new things about the micro world.
Convenient and reliable
case
The sturdy plastic case ensures the microscope and all the accessories included in the pack can be transported safely.
Features:
- Biological microscope with 64–1280x magnification
- 2x Barlow lenses included
- Available in five bright colours
- Sturdy and durable metal body
- Top and bottom LED illumination systems
- Experiment kit included
- Comes with a handy plastic case
The kit includes:
- Microscope
- Objectives: 4x, 10x and 40x
- Eyepiece: WF16x
- 2x Barlow lenses
- Specimen stage with lever
- Diaphragm
- Condenser
- Integrated top and bottom LED illumination
- AC adapter
- 2 AA batteries
- Plastic case
- Levenhuk K50 Experiment Kit
- User manual and lifetime warranty
The Levenhuk K50 Experiment Kit includes:
- User guide: ‘Fascinating Microscope: Exploring the Microcosm’
- Tweezers
- Artemia incubator (freshwater shrimp or brine shrimp)
- Microtome
- Bottle of yeast
- Bottle containing pitch
- Bottle containing sea salt
- Bottle containing freshwater shrimp
- 5 specimens
- 5 empty slides
- Dropper
- Dust cover
Some things you can observe under the microscope:





The Levenhuk Rainbow 50L PLUS microscope is compatible with Levenhuk digital cameras (sold separately). Levenhuk cameras are fitted into the eyepiece tube in place of an eyepiece.
Comparison table of Levenhuk Rainbow microscopes
| Levenhuk Rainbow 2L Microscope | Levenhuk Rainbow 2L PLUS Microscope | Levenhuk Rainbow 50L Microscope | Levenhuk Rainbow 50L PLUS Microscope | |
|---|---|---|---|---|
| Type | biological | biological | biological | biological |
| Head | monocular, tilted at 45° | monocular, rotatable through 360°, tilted at 45° | monocular, rotates 360°, tilted at 45° | monocular, rotates 360°, tilted at 45° |
| Body material | plastic | metal | plastic | metal |
| Magnification, x | 40–400 | 64–640 | 40–800 | 64–1280 |
| Lens material | optical glass | optical glass | optical glass | optical glass |
| Eyepieces | WF10x | WF16x | WF10x | WF16x |
| Objectives | 4x, 10x, 40x | 4x, 10x, 40xs | 4x, 10x, 40xs | 4x, 10x, 40xs |
| Barlow lenses | no | no | 2x | 2x |
| Rotating lens holder | 3 lenses | 3 lenses | 3 lenses | 3 lenses |
| Optical tube diameter, mm | 23.2 | 23.2 | 23.2 | 23.2 |
| Storage table, mm | 90x90, with lever | 90x90, with lever | 90x90, with lever | 90x90, with lever |
| Range of movement of the table, via the focusing mechanism, mm | 0–15, vertical | 0–8, vertical | 0–11, vertical | 0–11, vertical |
| Focusing | macro | macro-metric | macro-metric | macro |
| Lighting | top and bottom LED lighting with adjustable brightness | top and bottom LED lighting with adjustable brightness | top and bottom LED lighting with adjustable brightness | top and bottom LED lighting with adjustable brightness |
| Power supply | AC adaptor or 3 AA batteries | AC adaptor or 3 AA batteries | AC adaptor or 3 AA batteries | AC adaptor or 3 AA batteries |
| Carry case | No | no | plastic | plastic |
| Levenhuk K50* Experiment Kit | yes | yes | yes | yes |
* Please note that the Levenhuk K50 Experiment Kit is supplied in a single box.
| Brand | Levenhuk Inc., USA |
| Warranty, years | Lifetime |
| Package dimensions (LxWxH), cm | 18x40.5x27 |
| Shipping weight, | 3.24 |



