Try putting the scope directly on the bevel, with the bevel at 90 degrees to the scope edge to begin with.

Make sure to remove clear plastic lens cover.

Dial the focus barrel from one range to the other. It is not 50-500 … it is 50 or 500 power or supposed to be.

The focus field is very small and as said moving the razor to focus may be easier as opposed to using the focus knob. You will have to work out your own holder, I use an rubber eraser under the open scale.

Take photos with the software not the photo button it will knock you out of focus.

Adding additional light a goose neck halogen light or flash light will improve photos.