4DTips

Notes for Viewing:

a) Easiest viewing is when the image separation is about 2 1/2", equal to the human eye-eye separation. If the images are significantly closer then the eye crossing will be too pronounced and fusion difficult. If the separation is significantly greater then greater eye accomodation effort is required. Glasses will generally be needed.

b) View at normal PC viewing distance of about 18". Viewing at living room television distances doesn not give enough eye separation to permit fusing.

Notes for Making Videos:

        1) Objects in the scene at distances closer than 3 ft. will be more difficult to fuse, even with a viewer and results will be less satisfactory.

        2) The Logitech software will make AVI movies in the full range of available pixel sizes:

                160 x 120
                320 x 240
                640 x 480
                megapixel

        The 160 x 120 image size gives stereo separations that are too close for good fusing.

        The 320 x 240 image size, as shown on the webpage movie, gives good image separation and good streaming video speed. Playback can be set to Full Screen with most viewers which will increase the separation generally requiring a viewing aid (ie Pokescope or other). Also the lower image resolution will create a granier image when enlarged to Full Screen.

        The 640 x 480 image size will be more difficult to fuse for "free viewing" but will have higher quality if viewed Full Screen. The capture rate will be slower and depending on the motion in the scene may cause some jerkiness.

        The 'megapixel' setting is used for still pictures only and will give a high quality stereo split field image for viewing or printing.

        2) Windows Movie Maker makes allows only 320x240 streaming video (30 fps) and creates a Windows Media Audio/Video file (WMV).