Anything with that much magnification, will be hard to keep steady with out at least a try-pod, or maybe even a single pod.
At that magnification, the smalliest movement will seem like a football field.

I have a 10X glass, that works pretty good for the buds on plant. But even then, it is hard to get steady enough. And then the magnification is not close enough to see the Trich's. I have always used the leafs right next to the bud to look at. Any better way to see the plant at 50X +++ magnification?