Suitable for insertion into the Baader Mark V Großfeld binoviewer (plug diameter: ∅ 38 mm)
A Baader Glaswegkorrektor® is no Barlow! The reason for the trademarked name is only secondarily the displacement of the focal point! Primarily the Glaswegkorrektor® has the task of correcting the prismatic color fringing, which would arise from the large mass of glass prisms of the binocular when used on refractors.