Involvement:General (knows how to use it) - Ownership:1 day to 1 week
- Focus range: 0-infinity - Adjustable light intensity. - Does not feel like it will break easily. - Lens opening is recessed about 5 mm into open end of the aluminum tube, and in front of it are the LEDs in a ring, and a plastic ring in front of the LEDs. Lens opening between the LED ring is about 3 mm. It seems pretty hard to touch or scratch the lens by mistake.
On mine it is hard to get really good focus in the leftmost part of the picture. On the center and the right focus is pretty good. Slow updates in low light conditions, but that is expected.
You adjust focus by turning the cable end of the tube - many turns from 0 to infinity. Velcro strap on the cable.
Very good USB microscope in the <$80 class. And this is one of the cheapest in that class!
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