GrowCNanswered grow question 3 years ago I use a pocket microscope at 60x power and the trichomes are still a bit small but big enough to see clear/cloudy/amber.
Unfortunately the laws of physics make the depth of field (what is in focus) of anything very small. It doesn't matter if it's an electronic magnifier, a cheap plastic pocket microscope or an expensive microscope, the distance that is in focus is very small. The higher the magnification the smaller the zone that is in focus so use the lowest power that allows you to see.
I have a neurological condition that causes my hands to shake and sometimes very badly. With my pocket microscope I put my pinkie finger on the end of the magnifier. Then I rest that pinkie finger on the plant so the magnifier and plant move together. I also sit cross legged on the floor and put both elbows on my knees and hold the magnifier with both hands forming a triangle. Then when pushed against my face it gets more stable. Still, I can't do it on bad days when my shaking is acting up.
If you have a serious problem I would get a desk type electronic or optical microscope. Then use small scissors or snips to take a small sample piece and put under the microscope. That way you aren't touching or holding anything.