A simple and economical method for marking the EGG R-wave on film in cinefluorography

A new method for marking the R-wave of the EGG on ciné film was developed. The system utilizes the absence of one control pulse from the camera immediately after R-wave. The missing pulse causes one unexposed frame on the film, which in turn acts as a marker. The equipment costs about 500 Fmk. (similar to $132.00).