Wow, I am going to have to check that out. I had no idea they had them at raid yo shak. I am having a hard time seeing clear/vs/cloudy/amber the lighting seems to make things look different with the 30x handheld I have. It is very very hard to take pics with it, even to get it in focus without the phone is challenging enough. The field of view is just tiny, that is the main reason I think.
Hi RainStacks. The Radio Shack microscope is the best I've found for checking trix. Take a few small cuttings from your trix covered leaves and place them on a clean white surface. If you have glasses, take them off. The first time you use the scope you will have to play with both dials and get it to focus. From then on all you will have to do is minor adjustments.
I have A USB microscope too, but I found that it gives false impressions sometimes. Good luck!