Flat73 for Z73 (Power x 1:1) Adjustable

After purchasing the WO Z73 and finding it was impossible to find focus, I picked this flattener up. Wow, it was an instant change and I was able to focus easily. Not only do I recommend this, but it is 100% a required part with that scope. The build quality is perfect, not surprising given it is a william optics product. Install is simple with a few set screws, then screw this on directly to the back of the scope.

If you plan on doing astrophotography with any refractor, a field flattener is a must have. William optics supplies some of the best quality