AndonstarAD246S-P HDMI Digital Microscope with 7'' Screen, 4000x 3 Lens 2160P UHD Video Record, Coin Microscope for Error Coins, Biological Microscope Kit for Adults and Kids, Prepred Slides

Been having great fun with this versatile and useful microscope! Very ergonomic and intuitive to use when perusing the tiny world of microscopic stuff. Impressed with the resolution and clarity. Standard interface for objective lenses has me thinking about what I might do to enhance and extend this already impressive capability. Support for problems was rapid and effective.

cost a little more than what i wanted to pay but works great so can't complain. would definatly recommend

I was happier than I imagined I would be when I unboxed the Andonstar AD249S--kind of giddy--discovering all the feature value included for the cost in such an approachable package.For background, I am an engineering professional with pretty keen curiosities and often exacting standards. Beyond a handful of handheld "microscope" magnifiers in the 30-120x range, I had long been missing the capabilities this unit provides. I will be satisfied by this for some time for my personal use (microscopy is not a part of my professional life at this stage).Generally, each part is generally a well-designed balance of quality and cost. Connoisseurs of microscopy may find the approach too casual. But that's exactly what I appreciate: I can explore so much more of the world without an investment in overpriced, heavy traditional apparatus. The picture and optical quality are excellent. I don't have to strain my eye staring into a tiny hole! The display has many useful features--SD card memory, recording and static photos right from the screen, even WiFi?! (I haven't explored that one yet) The lens assembly has openings for two additional lenses... I'm curious to see what can be fitted.Assembly was pretty easy and straightforward and I felt the pictorial guide was pretty good. The whole thing is powered by USB--I even ran it off a USB power bank! So mobility becomes an interesting featureI have only two small complaints. First, there's a bit of play in the stage adjustment assembly which makes adjustment at the highest magnification difficult. This is nothing a little thought and minor modification on my part won't mitigate.The second concerns the bright field ("condenser") light: it seems very limited in brightness and does not project what I would expect. This may be unique to my unit. The USB plug-in lamps are much brighter. Also, I may not have the correct plastic disc cover for the condenser as described in the documentation: the semi-translucent disc is a bit too opaque to then project up to the stage, and I don't have a fully transparent disc. (I'm pretty sure I can fix these issues without too much effort.)Otherwise, the bang for the buck is astronomical, in my opinion. Very easy and very satisfying to use! Definitely worth it. One of my favorite buys.

The good- Magnification good, picture is reasonable. you can lessen magnification by raising up the lens in the holder. Built in lights work well for me.The bad- will not connect to other device, has no battery and mine does not keep track of time/date if unplugged.

parfait