The Baader Glasspathcorrector 1:1,25 is designed to correct the prismatic color fringing and minor spherical overcorrection that happens because of the long glass path in binocular prisms. These are NOT to be confused with a Barlow lens! The second purpose of a Glasspathcorrector is to move the focus point outwards so that you can reach focus with little backfocus.

• The Glasspathcorrector is suited to insert into the Baader MaxBright II Binoviewer with Zeiss Microbayonett or Mark V Giant-Binocular
• Optical path length >-30mm