Pentax SMC 55mm F/2
The Pentax SMC 55mm F/2 is a 55mm portrait lens designed for the PENTAX K mount and released in 1976. Manufactured by Pentax, it offers a maximum aperture of f/2, covering a 55mm focal range, weighs 221, accepts 52 filters. Pentax SMC 55mm F/2 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: aggregated from cinelenswiki.
- Mount
- PENTAX K
- Focal Length
- 55mm
- Max Aperture
- F/2
- Type
- Portrait
- Year
- 1976
- Brand
- Pentax
What is the Pentax SMC 55mm F/2?
The Pentax SMC 55mm F/2 is a 55mm portrait lens for the PENTAX K mount with a maximum aperture of f/2. Full specifications and source attribution are available at lens-database.com.
What mount does the Pentax SMC 55mm F/2 use?
The Pentax SMC 55mm F/2 uses the PENTAX K mount. Lens-database.com indexes every lens currently catalogued for this mount at https://lens-database.com/mount/pentax-k.
What is the maximum aperture of the Pentax SMC 55mm F/2?
The Pentax SMC 55mm F/2 has a maximum aperture of f/2, a fast-aperture optic well-suited to low-light work. Aperture is one of the cross-referenced fields used by lens-database.com to compare equivalent optics across mounts and eras.
When was the Pentax SMC 55mm F/2 released?
The Pentax SMC 55mm F/2 was released in 1976, placing it within the 1970s 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 Pentax SMC 55mm F/2?
Full specifications, original source links, and family variants are listed at https://lens-database.com/lens/103682-pentax-smc-55mm-f2. Data is aggregated from manufacturer sources and updated continuously.
The SMC Pentax 55mm f/2 is a manual-focus standard prime lens introduced in 1976 as part of the original K-series lineup, and produced until 1977. It shares the same 6-element/5-group optical design and physical dimensions as the faster f/1.8 version, but was marketed as a more affordable alternative. It features a 6-blade automatic diaphragm, Super Multi-Coating (SMC) for improved contrast and flare resistance, and a Pentax K bayonet mount—though it lacks an “A” setting on the aperture ring. The lens focuses down to 0.45m, delivers a 0.17× magnification, and uses a 52mm filter thread. It weighs 221g, measures 63 × 39mm, and offers a 43° diagonal field of view on full-frame. Engraved as smc PENTAX 1:2 55mm, it’s fully compatible with manual and aperture-priority modes on Pentax DSLRs.
Last verified: 2026-07-26