45 degree half silvered mirror can also do it (https://www.fastcompany.com/1663105/errol-morriss-secret-weapon-for-unsettling-interviews-the-interrotron https:/

45 degree half silvered mirror can also do it (https://www.fastcompany.com/1663105/errol-morriss-secret-weapon-for-unsettling-interviews-the-interrotron https://www.fastcompany.com/1663105/errol-morriss-secret-wea... )