Review on 🔬 HD 7-Inch LCD Digital Microscope with 32GB, 50-2000X Magnification, 12MP Camera for Science Observation, Coin, PCB, and Plant Studies by Corey Kim

I am very impressed that this high-resolution microscope with a good color display is relatively cheap. It's not the cheapest, but it has plenty of performance and features for the price. I earn my living as a trait researcher. I've been analyzing digital microscopes for the past few months to find ones that I like for lab and home use, and that are also relatively inexpensive. This microscope, which uses a 2000x objective, has the best resolution of any microscope I've tested (except for lab microscopes, which cost several thousand dollars each). I use a standard USAF 1951 resolution target, the industry standard for determining how much detail a microscope can REALLY see. The reference target itself is a precision device that costs three times as much as this microscope, which is why I have shared this information in reviews so home users can benefit from real data. By looking at clumps of lines you usually decide what the smallest set will be so you can still see individual lines, some of them will be blurry if they are too small for the microscope. With this microscope I can see all the pairs clearly which is amazing for such an inexpensive microscope. This means it can detect at least 228 pairs of lines per millimeter or features smaller than 2 microns (0.0002 cm or 0.00008 inches). I confirmed this by looking at a sample of blood cells that were 6-8 microns in diameter and these cells are easily distinguishable. Bottom line, they are equipped with two lenses. One is optimized for fine detail and has very high resolution, allowing you to see cells and other features prepared on flat slides. The downside is that much more light is needed and the focus is on a very thin area, so the cell samples are on glass. The fact is that with increasing magnification, the depth of field decreases. Impossible to get high magnification and see 3D objects. So it's great that they also have a lower magnification lens. This low magnification lens requires much less light and you can see 3D objects well. If you look at the difference in glass size between the two lenses, you can see why a higher magnification lens needs more light. The glass is much smaller so it focuses less light onto the camera's sensor. For photographers, all of this will also make intuitive sense, since the same basic laws of optics apply. Finally, the screen seems to have good color reproduction on this one. Many other microscopes have horrible screens. I don't like that I have to press a button on the screen to take a picture, it makes the sample shake, but you can just tether it to a computer for that. The screen is still great for live viewing. It doesn't work as a full 12MP camera on my Mac, but it could be a problem with my computer's settings. Focus adjustment is decent, making it easier for me to move the table to get good focus. Later I will update this review with additional pictures to show some other useful uses of this microscope. Once again I'm impressed with the performance for how affordable it is.