AmScope M158C Cordless Compound Monocular Microscope with WF10x and WF25x Eyepieces
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- Cordless compound microscope provides high magnification for biological use and educational applications
- Monocular viewing head with interchangeable 10x widefield and 25x widefield eyepieces, fixed 45-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to provide a more comprehensive view and enable sharing
- Forward-facing nosepiece with 4x, 10x, and 40x DIN achromatic full-glass objectives that provide high-resolution color-corrected images
- Brightfield, LED illumination with rheostat, a 0.65 NA single-lens condenser with disc diaphragm, and coaxial coarse and fine focus for sharp images
- Plain stage with stage clips to secure slide and a stage stop to prevent damage to slides or objectives
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The AmScope M158C monocular compound microscope has interchangeable 10x widefield and 25x widefield eyepieces, a forward-facing nosepiece with three DIN achromatic objectives, rheostat-controlled LED illumination, coaxial coarse and fine focus, a 0.65 NA single-lens condenser, and a plain stage. The forward-facing revolving nosepiece has 4x, 10x, and 40x DIN achromatic full-glass objectives that provide high-resolution color-corrected images. The monocular viewing head has one 10x widefield eyepiece on a fixed 45-degree vertical inclination to reduce eye and neck strain and 360-degree rotation capability to provide a more comprehensive view and enable sharing. A compound microscope is used for inspection and dissection of specimens when two-dimensional images are desired.
The microscope has lower (diascopic) Brightfield illumination that transmits light up through the specimen for enhanced visibility of translucent and transparent objects. Brightfield (BF) illumination allows the specimen to absorb light, resulting in a dark image on a light background. LED illumination provides bright, cool light for working with temperature-sensitive or live specimens. Rheostat control capability allows the viewer to control light intensity. The 0.65 NA single-lens condenser and disc diaphragm control the amount of light illuminating the specimen. The plain stage is 3-1/2 x 3-1/2 inches and has an opening for light transmission and stage clips to secure the slide or specimen in place while viewing. A stage stop prevents the stage or specimen from coming into contact with the objectives. Coaxial coarse and fine focus knobs are nested to speed focusing for left-and right-handed viewers. All mechanical components are constructed of metal for precision and durability, and the solid-metal frame has a stain-resistant enamel finish. The microscope is powered by a 110VAC adapter (included) or by three AA batteries (sold separately) for field use.
|Objectives||4X, 10x, 40x achromatic|
|Lighting configuration||Transmitted (lower)|
|Light source||LED with rheostat|
|Power||110V/60Hz or three AA batteries|
Microscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. Microscopes can have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying magnification abilities. Magnification ability refers to the size of an image. Resolution, also known as resolvant power, refers to the clarity of the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Microscopes can control magnification through a fixed focus, or through a range of adjustments. They can also utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries.
United Scope manufactures microscopy equipment and accessories under the brand name AmScope. The company, founded in 1996, is headquartered in Irvine, CA.
What's in the Box?
- AmScope M158C microscope with plain stage
- WF10x eyepiece
- WF25x eyepiece
- 4x DIN achromatic objective
- 10x DIN achromatic objective
- 40x DIN achromatic objective
- (2) Stage clips
- Dust cover
- 110V power adapter
Seller Warranty Description5 years warranty for parts and labor. Buyer covers round way shipping cost.
Top customer reviews
HOWEVER: The 40x objective can't focus that high above the stage. You'll need thin (.8mm or less) or depression slides, which are slightly more expensive, and slips in order to really get in tight for microbes, amoebae, and carbon fiber robot building (you should probably have a pro 'scope for that, anyway). It shouldn't deter you from buying, but be sure to add the right slides/supplies to your order.
Also, if the portability is a seller for you, I'll add that there is clearly a battery compartment in this model. However, and I'll concede that I may just be stupid, I can't figure out how to get that bad boy open.
EDIT: 6 months later, I found myself in a situation that required the use of the battery, and I decided to go for broke. Pliers remove the cap easily, and the fastener beneath the cap is sturdy enough that it won't cause damage. Disregard my portability complaint.
1) The 10X eyepiece comes with an internal “arrow” (a black thin line that goes from the edge of the eyepiece almost to the center of it). This “line” is used as an aiming aid in pin pointing particular segments of an observed item. It comes pretty handy especially when there is the need to increase substantially the magnification. Since the eyepiece arrived dirty, I proceeded to clean it by blowing the lens with a camera lens dust blower followed by a dry sheet of optical grade paper, as suggested by the manufacturer. When I reinserted the eyepiece all the grime was gone… together with the arrow. Imagine my surprise when, upon calling Customer Service, I was told that the “arrow” is actually a sticker attached to the bottom of the eyepiece lens (versus being etched in the glass) and that “can be easily removed” when the lens is cleaned. I guess, according to AmScope, you either have to keep your lens dirty or lose the aiming device. Your choice.
2) According to the manufacturer, the microscope comes with a little screwdriver used to remove a tiny screw that is present on the body tube and that keeps the Ocular Lens (the Eyepiece) from falling off. The screw is shown in both the User Manual and the YouTube video provided for this particular microscope. However, while I did get the screwdriver, somebody at the factory actually forgot to drill the hole where the screw is supposed to go in. As a result the eyepiece is loose and it can easily fall off if the microscope is tilted accidentally or during transportation from one location to another.
3) The instructions in the box the microscope comes in say “You may download the manual for your M150 microscope at the following link (enter exactly as it appears, it is case sensitive): http://goo.gl/fzACX”. However the link just takes you to AmScope main web page. On my second call to their Customer Service I was told and I quote “I am sorry, we are aware that the link doesn’t work, give me your email address and I will email the manual to you”, which they did. I guess just fixing the link was out of the question.
4) The LED light is not strong enough, even at the highest setting, when used with the three AA batteries.
While all of the above are just small problems that can be easily solved, they sure don’t speak very highly about the overall quality of the product. Other then that, the body of the microscope appear to be solidly built. The optical quality of the 10X eyepiece is fairly good for the price while the quality of the 25X eyepiece is less then average (extremely dark). If you are looking for an inexpensive microscope for light recreational use, and are willing to overlook a few quality problems along the way, go ahead and buy this microscope. Otherwise spend a little more money and get something better. I wish I did.
----UPDATE 7 JULY----: after giving this microscope one more try before returning, I discovered that you need to have the AC adaptor plugged in with the batteries installed for about an hour before the LED will run on battery power alone. There was no documentation included with this device that states this. I just happened to unplug the AC adaptor (while the batteries were in the device) after using it for about an hour, magically the LED remained on. I am still returning the device for a nicer microscope, the one eye piece is a little annoying but overall it is a decent microscope for the price.
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