Third Planet Optics 0.5X Focal Reducer
The TPO 0.5x focal reducer screws onto any 1.25” eyepiece barrel and provides a nominal reduction of 0.5X.
The actual focal length reduction will vary a little over or under 0.5x depending on where the focal reducer is placed exactly in the optical path.
The TPO .5X reducer features a 2-element fully multi-coated optical design and blacked lens edges in a black anodized aluminum filter cell. It also has additional 1.25" filter threads, so you can screw/stack additional filters on to this reducer.