Review: TOMLOV TM4K MAX digital microscope 10.1" screen $270

Amazon Affiliate Link: https://amzn.to/4cu0k3x
Price as reviewed: $270 (-20$ coupon currently)

TOMLOV TM4K Max 4K Digital Microscope 2000x, 52MP Spin Arm Soldering Microscope for Adults, 10.1" HDMI Electronics Repair Microscope with Ring Light, Larger Base LCD Coin Microscope Full View, 64GB

This is a 4K digital microscope with the MAX (10") display. It includes a large steel base, a swing arm that makes it easy to position, and an optional AC powered ring light you cam mount to the bottom of the microscope for extra illumination (in addition to the LED lights inside the end of the microscope).

The image quality is very good, the screen is large and bright. It has all of the functions you'd expect (photo & video recording, split screen or quad screen freeze so you can compare different areas, digital zoom, split screen zoom, on screen reference lines & (non-calibrated) rulers, plus the ability to adjust color balance, contrast, saturation, etc.

The Microscope exports HDMI video and can potentially act as a webcam for a windows computer (I did not test this functionality). You can also copy files off of the included 64 GB SD card when plugged into a computer (or remove the Micro SD card and plug it into a device). The microscope has a battery that will run it for 2 hours (at 60% screen brightness), or you can run it plugged in using the included AC to USB-A 2amp adapter.

If you want to use the optional ring light (the microscope itself has integrated LEDs) you need to plug it into an AC outlet.

The focus adjustment is manual, so you will need to twist the microscope body any time you change the distance to your target, and you will have to keep your target at the same distance to keep it in focus.

The swing arm has an up/down rack and pinion adjustment system so you can "zoom in" by lowering the lens, or "zoom out" by raising it. (in addition to the digital zoom built into the display unit).

You can record 4K video (or select HD video for smaller file sizes) and save 52 or 13 megapixel images. The microscope includes a screw on UV filter (it accepts standard 1.25" filters) and a light blocking shield that will keep the internal LED's from reflecting back off of the filter. [There is no way to turn off the LED's that I could find in the menu system.]

I was very happy with the performance of this microscope. The only issue I have in recommending it is the price. At the MSRP of $399 it feels very expensive. Even at the 33% off + 20$ coupon price of $250 it is not cheap. The display unit is plastic, and the swing arm works fine, but doesn't exactly show Swiss watch precision. I would suggest shopping around to see if you can find similar performance at a lower price before pulling the trigger.