Koolertron 2 inch Handheld Digital Microscope with LCD Screen, Pocket Microscope with 32G Card for Kids and Adults,50x-1000x Magnification HD Magnifier for Coin/Circuit Board/Observation

4 reviews for Koolertron 2 inch Handheld Digital Microscope with LCD Screen, Pocket Microscope with 32G Card for Kids and Adults,50x-1000x Magnification HD Magnifier for Coin/Circuit Board/Observation

1. 

   Rated 5 out of 5

   – January 1, 2024 Dr. Hester Hodkiewicz Jr.

   So with this purchase I was not sure if I wanted to go forward with it because must magnifying elements on these products is not as powerful as they say, but I must say I was soooo surprised. It you truly need to see GREAT detail, this is your tool I really luv this. It has a knob on the side that you twist to adjust the focus and it brings everything into focus even the littliest detail… Great quality product… Works well if you are a coin collector you can see every detail on your coins. This is the coolest product and the battery life, size and brightness is great.

2. 

   Rated 5 out of 5

   – March 30, 2024 Prof. Angus Sporer

   I bought this SMD micro soldering and pcb inspection…look, it’s a sub $100 microscope…and for the money, I didn’t expect it to be so usable! The picture is amazing, and the infinite zoom is awesome. It has the slightest bit of input lag, but after just a day of messing around, I can touch my soldering iron to even the smallest capacitors just looking at the screen. I was expecting it to only be good for PCB inspection, but I am definitely able to solder even the smallest components with this with no Trouble at all. Honestly, I don’t see you finding a more usable scope unless you want to drop an extra 2 or 300 or if you buy a stereo scope. The input lag is almost non existent, but it IS present…however, i can’t imagine anything short of a $400 digital scope really being much better. The the image quality is flawless, the screen, amazing, the zoom will focus clearly at ANY distance. it’s a sub $100 microscope, don’t expect the world…but if your expectations are reasonable, this will far exceed them. buy it, or spend the extra couple hundred to get what you really want because this is the best value for the price range! You won’t find better without dropping quite a bit more.

3. 

   Rated 5 out of 5

   – April 16, 2024 Maximilian Donnelly MD

   A microscope can have high magnification, but poor resolution. Racking the microscope from up to down optically projects an ever-smaller portion (field of view) of the specimen onto the microscopes CCD sensor. The result is magnification with increased resolution (limited by the optics and CCD resolution). The up/down buttons on the microscope digitally magnify by selecting a subset of the sensor’s pixels and digitally upscaling them. The image is bigger (magnified), but there is no increase in resolution (like watching SD programming upscaled on a HD set). The pixel density of the display determines the viewed specimen size on the screen. A good analogy is an HD video is much smaller on your phone than on a large-screen HD TV, but both have the same HD resolution. It’s just that the cellphone is smaller with a far greater pixel density. Magnification without increased resolution is sometimes called “empty magnification”. It is fine for soldering circuit boards, but not useful where both magnification and resolution are needed (i.e., cell structure).I made the following measurements using a slide (w/ mm scale) and measuring the apparent size on the scope’s screen (no zoom):- High point (Lowest Power): 22mm on slide measured ~90 mm on screen (~4x) with ~23×13 mm FOV- Low point (Highest Power): 2 mm on slide measured ~90 mm on screen (~45x) with ~2 mm x 1.1 mm FOVThe digital zoom button (up arrow) provides an additional 2x zoom (~90x max on the microscope’s display). Displaying the image to a 27” HD display provides ~6x increase in apparent image size, but no increase in resolution. I assume the CCD sensor is HD (1980×1080), but could not confirm.Images were sharp with good color on the microscope screen. I would rate the build quality as average for the price. The lighting system is good (and adjustable), but could use better diffusers. The gooseneck lights are definitely needed at low focus (high rack). The UV filter is threaded, but attached with double-sided tape. The rack and pinon focuser had a bit of play, but acceptable in this price range. The barrel focuser was a little stiff. Wireless control did not work out of the box, but I was able to move the circuit board to make contact the battery (not included). No PC software was in the box, nor a download link provided; however, the seller did provide link on request. The instruction manual left a bit to be desired – but all-in-all, my initial impression is that it is acceptable for its intended purpose (i.e., viewing objects visible to the naked eye and circuit board soldering).

4. 

   Rated 5 out of 5

   – September 25, 2024 Ethel Oberbrunner

   I bought this to magnify coins, principally looking for constitutional silver coins/dates, it works great and magnifiesmultiple times and makes it easy to see tiny objects. It is great value for money !