How to use a stereoviewer
Stereoviewers are used to watch stereoscopic images in 3D. They can be on print or on a screen. It can also be used to watch 3D movies in the stereoscopic format.
➊ Depending on the size of the image/video, keep the distance from the image/screen around 60-100cm.
➋ To make the two images merge into one 3D image it helps to move back and forth to find the right distance. Moving the viewer back and forth from your eyes can also help you to focus on the 3D image.