0.01mm Microscope Reticle Calibration Camera Slide Ruler Cross Stage Micrometer Multifunctional Microscope Calibrating Ruler

Accurate and easily visible. Compared scale to gage blocks, several precision steel rulers, and the reticle in an old shop microscope. It does what it says, and the dimensions appear good. My limits for detecting error visually will be about 0.01mm. These scales are definitely at least that accurate -- and from the looks, I'd be surprised if they aren't micron accurate, though I don't have the ability to positively confirm that. The reticles appear perfect at 40x magnification.

Clean, markings crisp, easily seen

A very good tiny ruler for spores, and Bryophytes.

Most microscopy targets are pretty expensive, this one isn’t bad and is much cheaper.

I wanted to compare a few digital microscope resolutions to my optical field scope and loupes, and draw some tick marks on one of the monitors for measurement at maximum resolution. I've never owned one of these slides before but the print quality on it is decent, no scratches, and it did exactly what I needed. An aside - it's clear after using this slide that the Chinese digital microscope manufacturers are grossly inflating the resolution numbers on their scopes.

Ture to the products description.

This is a calibration slide for low magnification microscopes. It is a glass slide printed with 2 straight division measures (0.1 mm and 0.01 mm) and 2 dots (0.15 mm and 0.07 mm). The printing appears to be a form of silver oxide. The slide comes wrapped in tissue paper in a hard plastic hinged box padded with foam on both top and bottom.I have found this slide quite useful for documenting plant tissues with my dissecting scope. It is easy to use and the workmanship is quite good. The printing is clear and it has not rubbed off with use. The packaging is great for protecting the slide. Overall, this is a good choice for home or school microscopy.

Very simple device. Just plop it on the scope, center it, and away you go. I was able to to calibrate my microscope so that I know the actual size of what I'm looking at.Very useful when comparing to published sizes of organisms.