The International Stereoscopic Union (ISU) was founded in 1975 and is the only international 3D association in the world. The ISU is a club of individual 3D enthusiasts as well as a club of stereo clubs. The ISU’s members currently number more than 1,050 and come from over 40 countries world-wide.

3D-Photography, 3D Video Imaging, Computer Stereo, Digital Stereo Projection, Holography, Virtual Reality and all other stereoscopic photography techniques are used by members of the ISU.

Although the ISU caters mainly to the 3D amateur photographer, the ISU also has much to offer to members who are professional stereo photographers and cinematographers, as well as to those who are involved in the scientific aspects of the stereoscopic image.

Stereoscopy – the publication of 3D image-makers

The quarterly Journal of the ISU, Stereoscopy – the publication of 3D image-makers, is circulated to all members and is considered to be an important item keeping the membership up-to-date with the Arts and Technology of 3D Imaging.

Apart from tuition in 3D photographic techniques, the Journal carries information and articles from around the world on new equipment, literature and all manner of related subjects.

Many articles are well illustrated with 3D drawings and stereo photos – and since 2007, every issue is printed in full color with high-resolution photographs.

Biennial International Stereo Congress

A major activity of the ISU is the organization of a Congress every second year in one of the member countries. The ISU World Congress is the perfect place to meet fellow stereographers face to face, to network, and to exchange ideas.

The 25th ISU World Congress, will take place from August 18 to 25, 2025 in Wageningen, The Netherlands. More Information will be available on a future Congress Website.

Become a member of the ISU

It is easy to become a member. For instant ISU membership, payments by Credit Card are accepted through this website. Or contact your local ISU Country Representative for local payment options. He/She will assist you to pay your ISU membership dues in your local currency. Current ISU membership dues for individual members are less than US$2 per month and should be affordable to anybody.

Special membership packages are available to Associate Members (companies) and to Libraries.

Your Country Representative will also be more than happy to assist you finding fellow 3D photographers living in your area.

If there’s no ISU Country Representative in your country, either contact your nearest Country Representative or the ISU Membership Secretary.

Should you need personal assistance or have any additional questions, please send a message to Contact@ISU3D.org