Studies of cinema picture elevation in relation to viewer comfort

Description:

This silent, black and white film produced by Group for Research in Occupational Optics records the posture of seated subjects while viewing projected film on a screen that could be raised or lowered. The results of the study are not included. Find out more: http://catalogue.wellcomelibrary.org/record=b2001843~S3.

Complete Record: This silent, black and white film produced by Group for Research in Occupational Optics records the posture of seated subjects while viewing projected film on a screen that could be raised or lowered. The results of the study are not included. Find out more: http://catalogue.wellcomelibrary.org/record=b2001843~S3.