YUS 135mm F/2.8 Automatic

The YUS 135mm F/2.8 Automatic is a 135mm telephoto lens designed for the CONTAX/YASHICA mount. Manufactured by YUS, it offers a maximum aperture of f/2.8, covering a 135mm focal range. YUS 135mm F/2.8 Automatic is catalogued on lens-database.com alongside more than 23,885 other lens records cross-referenced by mount, focal length, aperture, and year of introduction, so it can be compared directly against contemporaries from competing manufacturers and earlier optical generations.

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 2026-07-26. Source: AI-assisted summary, verify against linked manufacturer sources.

What is the YUS 135mm F/2.8 Automatic?

The YUS 135mm F/2.8 Automatic is a 135mm telephoto lens for the CONTAX/YASHICA mount with a maximum aperture of f/2.8. Full specifications and source attribution are available at lens-database.com.

What mount does the YUS 135mm F/2.8 Automatic use?

The YUS 135mm F/2.8 Automatic uses the CONTAX/YASHICA mount. Lens-database.com indexes every lens currently catalogued for this mount at https://lens-database.com/mount/contaxyashica.

What is the maximum aperture of the YUS 135mm F/2.8 Automatic?

The YUS 135mm F/2.8 Automatic has a maximum aperture of f/2.8, a standard pro-grade aperture. Aperture is one of the cross-referenced fields used by lens-database.com to compare equivalent optics across mounts and eras.

Where can I find specifications for the YUS 135mm F/2.8 Automatic?

Full specifications, original source links, and family variants are listed at https://lens-database.com/lens/1009986-yus-135mm-f28-automatic. Data is aggregated from manufacturer sources and updated continuously.