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The AmScope MR400 microscope calibration slide has four graduated scales for calibrating microscope eyepiece and camera reticles. The four graduated scales include a 0.07mm dot, a 0.15mm dot, a 0.01mm crosshair, and a 0.01mm single line. Brightly illuminated grid lines on precision-ground glass construction provide accurate readings. The slide comes with a protective case.
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.
Idumea47b
Reviewed in the United States on October 18, 2016
The slide arrived in oily condition on both sides and was full of finger prints. It was possibly a used or returned slide that was covered with immersion oil. It required substantial cleaning to remove the oil. The calibration lines did not appear to be adversely affected by the cleaning; although, I am concerned about returning it to the holder because of oil on the foam protector pads.
Alex Z
Reviewed in the United States on January 30, 2014
I have not checked the accuracy of the calibration scale on this slide, and haven't compared it to any other standard. The seller does not provide any assurance of a traceable accuracy. But, if we assume that the scale and calibration on the slide is correct, then....This is a steal of a price for a calibration slide. Science supply websites sell these for over $200, sometimes at $1000. So, I was happy to see the price.I have used this to calibrate my professional microscope using up to 500x mag (using 50x objective), and could probably use for 100x objective, but haven't tried. I also used this for calibrating my DSLR camera. I use the DSLR on my microscope along with a professional microscope camera and this calibration slide allows me to get the correct calibration for each. I also use my DSLR for macro scientific photography, and using different lenses, I can calibrate sizes with this.The slide comes in a nice cushion package so it's protected well.The markings are easy to see, and there are lots of markings.I will buy again if I need another.
Andrew Scanlan
Reviewed in the United States on January 25, 2014
The stage micrometer works great. I just wish it came with a little instruction since the last time I had to calibrate a micrometer has been a while. Thankfully the internet is handy in that matter. It definitely gets the job done, but with lack of clear instructions its makes figuring it out all the much sweeter.
M. Carter
Reviewed in the United States on April 18, 2014
It's great to see a size scale when you begin using a new scope. It comes in handy to refresh your memory over time, just how big is that blob? Nice quality, and good price point too.
Carol Bernstein
Reviewed in the United States on September 3, 2013
This calibration slide was much easier to use than another calibration slide from Motic. The markings in the microscope were very clear and photographed very well in a digital photomicroscope. It was very helpful to have the written 0.1 mm or other spacing between marks on the slide etched right into the slide, near the lines indicating the spacing.
Troy M.
Reviewed in the United States on August 6, 2013
I was very happy to find these so cheap. I'm using them to calibrate a microscope for a Brownian motion experiment measuring the motion of 1 micron polystyrene beads. It works great in Vernier's Logger Pro! I'm using the Celestron telescope video cameras that are perfect to fit into standard microscope eyepieces. I was able to put this college-level lab experiment together very cheaply. I could even replace the beads with milk fat to make it even cheaper.
Ecologist
Reviewed in the United States on July 7, 2013
Nicely made and packaged stage micrometer. I still like to double check scopes to be sure they are calibrated correctly by directly measuring a known unit on the stage.
Morgan Venable
Reviewed in the United States on January 26, 2013
A slide with teensy-tiny markings so you can calibrate your microscope or just get a feel for the size of things with each of your objectives.The printing is perfectly clear, and there are a variety of targets for different scales.A bit expensive considering it's basically a one-time-use item, but hey, science!
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