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Levenhuk 870T Biological Trinocular MicroscopeTrinocular head. Revolving nosepiece with four objective lenses. Magnification from 40x to 2000x. Built-in dark field condenser.
Levenhuk 870T is a reliable biological trinocular microscope that may be used for both bright field and dark field observations. It is commonly used in various medical laboratories for clinical research in dermatology, biochemistry, cytology, hematology, and other scientific studies. Due to the trinocular design of the head, this model may be turne... more
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Levenhuk 870T is a reliable biological trinocular microscope that may be used for both bright field and dark field observations. It is commonly used in various medical laboratories for clinical research in dermatology, biochemistry, cytology, hematology, and other scientific studies. Due to the trinocular design of the head, this model may be turned into a digital microscope with an addition of an eyepiece digital camera.
The head of the microscope is inclined at 30 degrees and may be rotated 360 degrees around its axis. Four objective lenses on the revolving nosepiece, Köhler illumination method, adjustment of the aperture and field diaphragms make this microscope a perfect tool for serious observations.
The stage (140x155 mm, 5.5x6.1 in) moves along two axes. Focusing the view is achieved by rotating the coarse and fine focus wheels that raise or lower the stage itself, thus bringing the sample closer to or farther away from the objective lens. Both focus systems have smooth movements in 25 mm (1 in) increments for coarse and 0.002 mm (0.00008 in) for fine.
There is a variable brightness 6V 20W halogen lamp installed in the base of the microscope that acts as an illumination source.
Features
The Levenhuk 870T trinocular microscope is fitted with a dark field microscope condenser that may be used once the Abbe condenser is raised to its highest position. A dark field microscope is best suited for studying blood and other biological samples that simply cannot be observed in bright field. Rotate the ring on the illuminator clockwise to switch to dark field observations, rotate it clockwise again to switch back to bright field observations.
About dark field observations
Upon leaving the condenser, most of the light rays that pass through a specimen without changing direction form a hollow cone. Since the objective lens is located within this cone, none of the rays are focused on the lens. Only a few light rays, which are condensed on the cover glass upon passing through a specimen, remain within the cone and may be focused on the lens, thus providing the image. We can only observe the bright parts of the object against a dark background since they have different refractive indices; and when observing large samples all we can see are the bright edges that disperse the light rays.
Features:
- Magnification: 40–2000x
- Oil immersion
- Condenser: Abbe with iris diaphragm
- Two-axes stage
- Fine and coarse focusing
- Halogen illumination with brightness adjustment
- Household power supply
The kit includes:
- Microscope stand with base
- Trinocular head
- Objectives: PLAN WF: 4x, 10x, 40x, 100x (oil)
- Eyepieces: paired, wide field PLAN WF10x, PLAN WF20x
- Filters (blue, yellow, green)
- Bottle of immersion oil
- AC adapter
- User manual and lifetime warranty
Caution: Please refer to the specifications table for the correct mains voltage and never attempt to plug a 110V device into 220V outlet and vice versa without using a converter. Remember that mains voltage in the U.S. and Canada is 110V and 220-240V in most European countries.
You can find reviews on this microscope here and here.
Find answers to frequently asked questions about microscopes here.
Find a useful review on what a microscope consists of here.
Find out how to make your own microscope slides here and here.
Some things you can see under a microscope:
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You can find these and many more interesting microscope slides to observe in the Levenhuk Prepared Slides Sets.
Levenhuk 870T Biological Trinocular Microscope is compatible with Levenhuk digital cameras (purchased separately). Levenhuk cameras are installed in the eyepiece tube instead of an eyepiece.
The microscope comes with two additional accessories for connecting a digital camera: an extension tube and another extender. We recommend using these accessories when working with short focus objectives in order to achieve better focus.
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Head |
trinocular |
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Optics material |
glass |
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Magnification, x |
40-2000 |
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Eyepieces |
dual wide-field PLAN WF10x, PLAN WF20x |
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Objectives |
PLAN WF: 4x, 10x, 40x, 100x (oil immersion) |
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Revolving nosepiece |
4 objectives |
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Interpupillary distance, mm |
55-75 |
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Stage, mm |
140x155, movable along two axes |
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Stage moving range, using focusing mechanism, mm |
X-Y: 70x50 |
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Eyepiece diopter adjustment, diopters |
±5 |
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Condenser |
Abbe, 1.25 N.A, premium iris diaphragm and dark field condenser |
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Focus |
fine: 0.002 mm; coarse: 25 mm |
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Illumination |
halogen lamp 6V/20W |
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Power supply |
110V power cable |
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Usage |
General use product. May be used by kids over 3 years old. |
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Application |
Lab Research |
Levenhuk Review:
You can find reviews on this microscope here and here.Find answers to frequently asked questions about microscopes here.
Find a useful review on what a microscope consists of here.
Find out how to make your own microscope slides here and here.
There are no recent reviews available for this product.
High-resolution images (rar)
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User manual: Biological Microscopes Levenhuk 850B / 870T / D870T
1654kb
Levenhuk 870T Biological Trinocular Microscope - Total: 38
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(2017-11-20 12:16):
Do you have eyepieces suitable for this microscope with magnification over 20x? Levenhuk Customer Service:
Eyepieces with magnification over 20x are not available in our product range.
(2017-11-19 06:20):
Can I obtain more than 2000x magnification by using additional optical accessories (Barlow lenses, objectives, eyepieces, etc.) Levenhuk Customer Service:
The microscope’s maximum magnification is 2000x. You can obtain higher magnification with more powerful eyepieces, but it can affect image quality.
(2017-10-07 05:43):
I want to buy a darkfield condenser for this microscope. I'm upset that this 870T doesn't come with a real darkfield condenser. Can you tell me the size of the condenser mount so I can add myself ? Levenhuk Customer Service:
Dear Nick, thank you for your inquiry. The size of the condenser should be the same as the size of the condenser on your microscope. We've requested the data from our product manager as well. The result will be provided shortly.
(2017-10-02 11:40):
how do I attach my c-mount camera to this ? (such as nikon 1 or m43 that has c-mount adapter attached) Levenhuk Customer Service:
Dear Nick, thank you for your interest in Levenhuk products. You just need to insert the camera to the tube. The diameter is 23.2 mm. So, if you have another size, you will need to use the adapter that can be purchased in your local camera store. We also have a big choice of microscope cameras. Is there any additional information you might need?
(2017-06-11 02:42):
Do I need to tint the bacteria while using a darkfield method? What is more efficient, tinting the bacteria or the darkfield method? If tinting is more efficient, which coloring should I use? Levenhuk Customer Service:
When studying the bacteria, you need to tint them in any case. Food colorings will be perfect.
(2017-06-01 08:46):
Sorry for the frequent questions. What do I do if the oil spot on the immersion lens has dried? Levenhuk Customer Service:
Try to gently wipe the lens with the soft, dust-free cloth before trying to clean it with alcohol or other aggressive cleaning liquid. You can also use a piece of Styrofoam. First, remove the contaminated lens from the revolver. Rub the frontal lens with by tapping on it lightly with a piece of Styrofoam and turning it around. Dry foam material cleans the frontal lens from dirt (such as immersion oil) really well. You can easily check it by removing the eyepiece from the holder, turning it over and using it as a magnifying glass, keeping it at an acute angle over the front lens. You can simply see through this 10x magnifying glass if the front lens is clean or not. If not, repeat the procedure one more time. Then wipe the lens one more time, check it under the "magnifying glass" and put it back in place.
(2017-05-30 11:00):
Can I attach the darkfield to the lenses with 40x and 100x magnification on this microscope? Levenhuk Customer Service:
Yes, you can do it with the trinocular Levenhuk 870T microscope
(2017-05-28 06:47):
Hello. Could you tell me please how I can attach the light filters to this model? There isn't any advice in the instruction Levenhuk Customer Service:
Light filters are installed under the stage; there is a special niche for installing and fixing the light filters.
(2017-05-14 04:33):
How can I observe objects in the darkfield without the condenser? Levenhuk Customer Service:
You will need an Abbe condenser or a darkfield condenser in order to observe the samples in the darkfield.
(2017-05-14 04:27):
Hello. I have just bought the microscope, it's awesome, but I can't figure out if the camera is included in the set? If yes, how do I use it? Levenhuk Customer Service:
The Levenhuk 870T trinocular microscope is not equipped with a camera. A camera comes with a Levenhuk D870T microscope. You can also buy the camera separately here: https://www.levenhuk.com/catalogue/accessories/microscope-cameras/
(2017-03-05 10:52):
Could you tell me how to switch to the dark field mode? Levenhuk Customer Service:
Levenhuk 870T Biological Trinocular Microscope is not equipped with a dark-field condenser. An Abbe condenser is mounted. Dimming occurs due to the rotation of the condenser.
(2016-10-14 12:24):
can I replace the halogen lamp with a LED one? Levenhuk Customer Service:
Unfortunately, it is impossible.
(2016-04-10 01:36):
There is a mirror in the kit but I didn't find any information on how to replace illumination bulb with the mirror... Levenhuk Customer Service:
The process of replacing illumination bulb with the mirror goes as follows: 1) Turn the microscope over and and unscrew locking screws at the sides to open the base 2) Unscrew four screws locking the ring, remove the ring and the lens 3) Close the base with the cover and lock it with screws 4) Turn the microscope back to its normal position and install the mirror
(2015-11-11 02:11):
What upgrades or accessories are available (LED illumination instead/polariser/phase contrast etc?? Are the objective D.I.N. standard or infinity or other? Levenhuk Customer Service:
Dear Ben, Thank you for your question. Unfortunately we do not produce the mentioned accessories. The objective meets all the required standards. Is there any additional information you might need?
(2015-10-07 12:10):
Can I observe opaque objects with this microscope? Levenhuk Customer Service:
Levenhuk 870T Biological Trinocular Microscope does not have an upper illumination source, therefore, you can only observe transparent samples with it.
(2015-02-08 03:55):
Hello! I'd like to know whether it is possible to replace the condenser on this microscope? I want to install another condenser (not the Abbe type). Levenhuk Customer Service:
Yes, theoretically, you can replace the condenser, but we don't have condensers suitable for Levenhuk 870T in our product range.
(2014-06-23 05:24):
Can I connect this microscope to PC and observe images on the monitor? Levenhuk Customer Service:
Yes, you can connect the Levenhuk 870T model to your computer using one of our digital cameras for microscopes https://www.levenhuk.com/catalogue/digital-cameras/for-microscopes/
(2014-03-08 08:58):
1) What's included in the kit of Levenhuk 870T? I can't find it anywhere in description 2) What's the difference between 870T and D870T, except the price? Levenhuk Customer Service:
Levenhuk 870T Biological Trinocular Microscope comes with: rotatable trinocular head; revolving nosepiece for four objectives; PLAN WF 10x and PLAN WF 20x eyepieces; 4x, 10x, 40x, 100x PLAN objective lenses; 140x155-mm stage; Abbe, 1.25 N.A. condenser with premium iris diaphragm and dark field condenser; user manual and lifetime warranty. With Levenhuk D870T Digital Trinocular Microscope you also get 8 Mpx digital camera for microscope, allowing you to capture images and record videos of observed samples.
(2014-03-03 09:17):
Hello! The manual says that achromatic objectives come with this microscope. So why did you write PLAN? Levenhuk Customer Service:
Currently, the Levenhuk 870T model comes with PLAN objectives.
(2014-03-03 01:01):
so why then in the manual is it written that achromatic objectives come with it? Levenhuk Customer Service:
Currently Levenhuk 870T Biological Trinocular Microscope comes with PLAN objectives, user manual will be updated soon.
(2014-03-03 11:48):
What do PLAN objectives mean?? Levenhuk Customer Service:
Plan objectives feature excellent color rendering and produce less spherical aberrations than achromatic or Semi-Plan lenses and provide flat field of view up to 95% of produced image diameter.
(2013-09-29 04:50):
What's the difference between these objective lenses Objective lenses 4x, 10x, 40x, 100x PLAN Objective lenses 4x, 10x, 40x, 100x OIL Levenhuk Customer Service:
100x PLAN - spring-loaded, immersion 100x OIL - immersion
(2013-09-13 04:05):
Please explain how to use this microscope at high magnifications? Levenhuk Customer Service:
Operation process is described in details in User Manual, it's available on-line on the product page on the References and Downloads tab. Or you can download it by clicking the link: www.levenhuk.com/products/materials/0/levenhuk-850-870-web.pdf
(2013-08-21 05:36):
Bought 970T from you. There is no user manual in the kit. The views are highly blurred when observing with 20x eyepieces. My questions - 1. where do I put filters? 2. why there is a mirror in the kit? Levenhuk Customer Service:
You can always find the User Manual on-line on our website on the product page on the References and Downloads tab. Filter should be placed in the filter holder on the diaphragm. A mirror can be used as a light source instead of the lamp.
(2013-08-18 04:47):
3. I am also interested in diameter of the third eyepiece Levenhuk Customer Service:
The third eyepiece’s diameter is around 1 inch.
(2013-08-18 04:46):
1. is it possible to attach Canon 450D SLR to the third eyepiece of this microscope? 2. what kind of adapter is required for this? Levenhuk Customer Service:
Attaching SLR cameras is not supported by microscope construction. We suggest you use digital cameras designed specifically for this purpose: https://www.levenhuk.com/catalogue/digital-cameras-microscope-all-items/
(2013-08-17 04:23):
1. then how to attach digital cameras you suggest to the third eyepiece if its diameter is 1 inch and camera adapters are 0.9-1.2 inches? 2. is a beam of light between binocular and the camera being controlled? Levenhuk Customer Service:
1. Trinocular has standard diameter. Adapters included in the kit are only needed for attaching a camera to the microscopes with another diameter. 2. Yes, a beam of light between binocular and the camera is controlled.
(2013-07-20 11:04):
Is it possible to insert illumination source in the third eyepiece to get quality images in reflected light? Levenhuk Customer Service:
Unfortunately, that cannot be done.
(2013-07-09 01:27):
PLAN eyepieces is a good thing, but I was asking about objective lenses. The description on the site says: Objective lenses 4x, 10x, 40x, 100x PLAN, and at the same time it is stated in the user manual: DIN achromatic objective lenses. Levenhuk Customer Service:
Included in the standard kit of this model are PLAN objective lenses.
(2013-06-29 01:28):
Hi! Do you have a C-mount adapter for attaching a digital camera to this microscope? Levenhuk Customer Service:
Unfortunately we don't have this adapter in our product range.
(2013-06-19 06:06):
Thank you, no need to explain anymore, I figured it out myself. Levenhuk Customer Service:
Thank you for your feedback.
(2013-06-19 03:42):
Please explain how to use immersion objective correctly. I mean for me it seems that I do everything exactly as it's said in manual: I drip immersion oil on the cover glass and lower objective lens so it touches the oil… but I can't see anything, only white spot. Maybe I need to apply some oil on the condenser as well? Levenhuk Customer Service:
The oil immersion objective (usually 100x or more) is designed for use with a drop of special oil, placed between it and the specimen. First you should focus on the area of specimen that you are going to observe using oil immersion objective. Then carefully place a drop of immersion oil on the cover slip over that area, and lower the oil immersion lens into place.
(2013-05-27 11:05):
Hello. Where can I buy oil of these two types - A and B? And which of them magnifies more or what's the difference between them? Thank you. Can a vegetable oil be used? I want to purchase Levenhuk_c800 camera and Levenhuk 870T Biological Trinocular Microscope. I need your guidance. Levenhuk Customer Service:
Unfortunately we don’t have immersion oil in our product range. Type A is a classic immersion oil Used as immersion liquid while working with apochromatic and achromatic objective lenses of microscopes of all types, except fluorescence microscopes, in visible spectrum. Type B is a professional immersion oil Used as immersion liquid while working with apochromatic and achromatic objective lenses of microscopes of all types, except fluorescence microscopes, in visible spectrum. Intended for microscopes with artificial illumination and image viewing system first of all. Compared to the classic immersion oil, immersion oil of B type has lower velocity and higher light transmittance. No, vegetable oil cannot be used. Do you want to process with the order?
(2013-05-27 09:26):
Hello, is immersion oil included in the kit? Levenhuk Customer Service:
Yes, immersion oil is included in the kit of the Levenhuk 870T Biological Trinocular Microscope.
(2013-05-25 12:22):
Are all of the objectives of this microscope PLAN??? Levenhuk Customer Service:
Yes, all the objective lenses provided with the Levenhuk 870T Biological Trinocular Microscope are PLAN.
(2013-04-26 02:42):
Will I be able to use Levenhuk C800 digital camera with this microscope? Levenhuk Customer Service:
Yes, of course, the Levenhuk C800 digital camera may be used with this microscope.
(2013-02-21 07:36):
Is this microscope appropriate for hematology analysis? if so is there a way of connecting it to PC and what equipment should I purchase for this? Would be very grateful for quick reply Levenhuk Customer Service:
Yes, the Levenhuk 870T Biological Trinocular Microscope is appropriate for hematology studies. To connect it to PC you need one of these microscope digital cameras: https://www.levenhuk.com/catalogue/digital-cameras-microscope-all-items/
(2013-02-20 11:38):
Is it possible to purchase additional eyepieces of 16x for this microscope from you (for example like the ones that come with Levenhuk 625) Levenhuk Customer Service:
Unfortunately we don't sell WF16x eyepieces separately. more
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