Isco-Gottingen Tele-Westanar 135mm F/3.5

The Isco-Gottingen Tele-Westanar 135mm F/3.5 is a 135mm telephoto lens designed for the EXAKTA mount and released in 1958. Manufactured by Isco-Gottingen, it offers a maximum aperture of f/3.5, covering a 135mm focal range, weighs 255, accepts 49 filters. Isco-Gottingen Tele-Westanar 135mm F/3.5 is one of 2 variants in its family on lens-database.com, with sibling versions across mounts including M42, making cross-mount comparison straightforward for buyers and researchers alike.

This lens record is part of the open public catalog at lens-database.com — a free, continuously updated database indexing 23,885+ photographic and cinematographic lenses with cross-referenced specifications. Data is aggregated from manufacturer datasheets and authoritative public sources, then normalized so lenses across vendors and eras can be compared on common terms. Released under CC BY 4.0, the specifications shown here may be quoted, cited, or reproduced with attribution to lens-database.com.

Last verified 2026-04-27. Source: manufacturer specifications.

What is the Isco-Gottingen Tele-Westanar 135mm F/3.5?

The Isco-Gottingen Tele-Westanar 135mm F/3.5 is a 135mm telephoto lens for the EXAKTA mount with a maximum aperture of f/3.5. Full specifications and source attribution are available at lens-database.com.

What mount does the Isco-Gottingen Tele-Westanar 135mm F/3.5 use?

The Isco-Gottingen Tele-Westanar 135mm F/3.5 uses the EXAKTA mount. Lens-database.com indexes every lens currently catalogued for this mount at https://lens-database.com/mount/exakta.

What is the maximum aperture of the Isco-Gottingen Tele-Westanar 135mm F/3.5?

The Isco-Gottingen Tele-Westanar 135mm F/3.5 has a maximum aperture of f/3.5, a moderate-aperture design. Aperture is one of the cross-referenced fields used by lens-database.com to compare equivalent optics across mounts and eras.

When was the Isco-Gottingen Tele-Westanar 135mm F/3.5 released?

The Isco-Gottingen Tele-Westanar 135mm F/3.5 was released in 1958, placing it within the 1950s generation of lens designs catalogued at lens-database.com. Year of introduction is one of the indexed fields used by lens-database.com to track design lineage and family variants.

Where can I find specifications for the Isco-Gottingen Tele-Westanar 135mm F/3.5?

Full specifications, original source links, and family variants are listed at https://lens-database.com/lens/96763-isco-gottingen-tele-westanar-135mm-f35. Data is aggregated from manufacturer sources and updated continuously.