Pentax 135mm f/3.5 Lens — Specs, Reviews, Used Prices

Pentax 135mm f/3.5 Auto Takumar M42 Lens

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Pentax Takumar 135mm f/3.5 M42

Condition: Excellent

Product Highlights

135mm Medium Telephoto Lens
f/3.5 Maximum Aperture
Manual Focus Operation
M42 Screw Mount Compatibility

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Pentax Takumar 135mm f/3.5 M42

Excellent

$100.00

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Lens Overview — Pentax 135mm f/3.5

The Pentax 135mm f/3.5 Auto Takumar is a vintage manual focus lens built for M42 screw mount cameras, manufactured during the 1960s. Designed for 35mm film format, this medium telephoto prime carries the Takumar lineage that earned a strong reputation among photographers of its era. The lens uses an M42 screw mount, one of the most universally adapted thread mounts in photography history, which today makes it highly accessible to shooters using modern cameras via readily available third-party adapters.

Focus is entirely manual, making it a hands-on, deliberate shooting experience favored by photographers who enjoy full control over their glass. Weighing in at 290g, it sits at a manageable size for a telephoto prime of its class. The lens is compatible with interchangeable M42 screw mount systems and was rated for 35mm film coverage.

Flash compatibility is listed as none, keeping the setup straightforward. Whether you're exploring vintage film photography on period-correct M42 cameras or adapting this classic optic for creative use on a modern body, the Auto Takumar 135mm f/3.5 represents a tangible piece of photographic history from the 1960s.

Key Features — Pentax 135mm f/3.5

135mm Telephoto Prime: A medium telephoto focal length well suited to portraiture, compressed perspectives, and isolating subjects at a distance.

f/3.5 Maximum Aperture: Provides a reasonable degree of background separation and performs adequately in moderate lighting conditions for a vintage telephoto.

M42 Screw Mount: Universal thread mount that adapts easily to most modern mirrorless and DSLR systems using widely available, inexpensive third-party adapters.

Manual Focus Only: Fully manual focus operation gives shooters deliberate, hands-on control over focus placement with no electronic interference.

Auto Takumar Lineage: Part of Pentax's respected Takumar lens family from the 1960s, known for solid optical construction and consistent rendering.

290g Compact Build: Relatively light weight for a 135mm telephoto prime, making it comfortable for extended handheld use.

Lens Specifications — Pentax 135mm f/3.5

Pentax 135mm f/3.5 full specifications
Spec	Detail
Use Cases	Portrait, Landscape, Creative Effects
Lens Mount	M42 Screw Mount
Focus Type	Manual Focus

Description — Pentax 135mm f/3.5

The Pentax 135mm f/3.5 Auto Takumar is a manual focus telephoto prime lens built during the 1960s for M42 screw mount cameras. Designed to cover the 35mm film format, this vintage SLR-type lens weighs 290g and connects via the M42 (Screw Mount) thread system — one of the most adapter-friendly mounts ever produced. It is compatible with M42 screw mount interchangeable lenses, giving it a degree of versatility that continues to attract film photographers and vintage lens enthusiasts today.

Flash compatibility is listed as none. As a product of the 1960s, the Auto Takumar 135mm f/3.5 represents a classic era of optical craftsmanship, and its M42 threading means it can be explored on a wide range of camera platforms with the appropriate adapter. For anyone drawn to manual focus shooting and vintage optics, this lens offers a direct connection to an important chapter in photographic history.

Pros — Pentax 135mm f/3.5

✓M42 screw mount enables broad adapter compatibility with many modern camera systems
✓Manual focus design gives shooters precise, deliberate control over focus
✓Lightweight at 290g for a 135mm telephoto prime
✓Vintage SLR-era construction from the 1960s with proven 35mm format coverage
✓Compatible with the wide ecosystem of M42 screw mount interchangeable lenses

Cons — Pentax 135mm f/3.5

✗Manual focus only — no autofocus capability for fast-paced or action shooting
✗No flash compatibility listed, limiting integrated flash triggering options
✗Age of manufacture (1960s) means individual sample condition can vary significantly on the used market
✗M42 screw mount requires an adapter for use on most contemporary camera bodies

Reviews — Pentax 135mm f/3.5

Videos — Pentax 135mm f/3.5

TAKUMAR 135MM F/3.5 - Is It Good Enough? — Mark Holtze

Resources & Downloads — Pentax 135mm f/3.5

Manuals & Guides

User Manual
PDF · 1.2 MB

Frequently Asked Questions — Pentax 135mm f/3.5

What camera mount does this lens use?+

This lens uses the M42 screw mount, also known as the M42 thread mount. It is listed as compatible with M42 screw mount interchangeable lens systems. Adapters are widely available for mounting it on many modern camera bodies.

Does this lens support autofocus?+

No. The Pentax Auto Takumar 135mm f/3.5 is a manual focus lens. All focusing must be done by hand using the focus ring on the lens barrel.

What film format is this lens designed for?+

This lens is designed for the 35mm film format, as indicated in the specifications. It is rated for 35mm film compatibility.

How heavy is this lens?+

The lens weighs 290g, making it a relatively manageable option for a 135mm telephoto prime.

When was this lens manufactured?+

According to the specifications, this lens was manufactured during the 1960s (listed as 1960–1969). It is classified as a vintage SLR-type lens.

Is there any flash compatibility with this lens?+

The specifications list flash compatibility as none. There is no dedicated flash integration associated with this lens.

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