Just a small update on my history with USB scopes.
I had purchased one many years ago, and was very happy with the use and functions.
As with things, over time (recently), it stopped working.
So I went looking on
Amazon for a replacement. After looking at many available; budget being a factor, ordered one then another. Both were sub-standard in functions and usability to the one I had.
Sent both back. I will say this about
Amazon, sending things back is quick and painless.
So I dug the old one out of the bin. The dimmer switch and LED's had stopped working; and other things.
So I took apart and rewired.
It's back working except for the LED's, but external light source works just fine. What's more important to me is focus, focal length and field of view.
Anyway, will continue to use until it totally dies and I can find a suitable compatible.
pat