I'd like a screw on lens reducer for a Sightron SIII 10-50x60. I used one from White Oak on another scope and I really like it. Has anyone tried this? There's an old thread, https://forum.accurateshooter.com/threads/white-oak-lens-reducer-help-needed.3959446/ , but it has no resolution. One problem may be that there are no threads on the ocular end. Can a lens reducer work on the objective end? I may have to resort to the lens cap style, but I'd rather have one that's integral to the scope.