Used Pentax 135MM F/2.5 SMC Takumar M42 Mount lens - Good

Key Features
- Classic Pentax SMC Takumar 135mm f/2.5 prime lens with M42 screw mount.
- Fast f/2.5 maximum aperture suited for portraits, selective focus, and low-light shooting.
- Fully manual operation with smooth focusing and mechanical aperture control.
- Renowned Super-Multi-Coated Takumar optical design for strong contrast and attractive color rendition.
- Compatible with M42-mount film cameras and adaptable to many modern mirrorless systems.
- Used item in Good condition, showing normal cosmetic wear from regular use while remaining fully functional.
OVERVIEW
The Used Pentax 135mm f/2.5 SMC Takumar is a classic manual-focus telephoto prime lens that remains highly regarded by vintage lens enthusiasts, portrait photographers, and filmmakers. Built for the M42 screw mount system, this lens combines a flattering short-telephoto focal length with a relatively bright f/2.5 maximum aperture, making it well suited for portraiture, detail work, compressed landscapes, and creative shallow-depth-of-field photography.
Compatible With
- Pentax Spotmatic series and other M42-mount film SLR cameras
- Other M42 screw-mount camera bodies
- Adaptable to many mirrorless camera systems with the appropriate M42 adapter
Classic Takumar Character
SMC Takumar lenses are known for their solid metal construction, precise mechanical feel, and pleasing optical rendering. The 135mm focal length offers classic subject compression that flatters facial features and helps isolate a subject from the background. Combined with Pentax's Super Multi Coating, this lens can deliver rich tonal separation, strong contrast for its era, and a distinct vintage rendering that many photographers intentionally seek out for both stills and video.
Fast f/2.5 Aperture Benefits
The f/2.5 maximum aperture gives this lens an advantage over slower telephoto designs by allowing more light into the camera and enabling shallower depth of field. This makes it useful for portraits with soft, blurred backgrounds, indoor available-light shooting, and cinematic visual styles. Stopping the lens down can improve edge-to-edge sharpness and depth of field for more controlled compositions.
Manual Focus Precision
As a fully manual-focus lens, the SMC Takumar 135mm f/2.5 encourages a deliberate shooting style. Its longer focus throw is especially helpful for fine focus adjustments in portrait, studio, and video applications. On modern mirrorless bodies used with an adapter, features such as focus magnification and focus peaking can make manual focusing easier and more accurate.
Build Quality and Handling
Like many vintage Pentax lenses, this model is admired for its robust all-metal construction and tactile operation. The aperture ring provides direct manual control, and the lens is compact for a 135mm telephoto of its class. Its straightforward mechanical design also makes it appealing to collectors and users who appreciate durable, electronics-free optics.
Ideal Uses
This 135mm Takumar is especially well suited for head-and-shoulders portraits, candid outdoor shooting, compressed nature scenes, stage photography where manual prefocus is possible, and close framing of architectural or landscape details. Videographers also appreciate vintage manual primes like this for their smooth focus feel and distinctive image character.
Why Choose a Vintage 135mm Prime
Compared with many modern autofocus lenses, a vintage manual-focus 135mm prime offers a different shooting experience centered on craftsmanship and image character. The SMC Takumar 135mm f/2.5 is often chosen by photographers who want classic rendering, mechanical reliability, and access to a respected legacy lens family without the size or cost of more complex modern telephoto optics.
Condition
This used lens is rated in Good condition, meaning it shows a small amount of cosmetic wear and blemishes from regular use and is considered to be 80-90% of its original condition. Lenses in Good condition may show slight scratches on the housing, while the glass elements remain very clean and unmarked. Zoom and focus rings may show minor signs of fatigue and/or oxidation; for this prime lens, the focus ring may show minor signs of normal use. The lens remains in full working order. Used items are warrantied for 180 days under the terms of the manufacturer's original warranty. Unique Photo makes every effort to grade used items fairly and provide accurate descriptions.
Historical Context
The Takumar name occupies an important place in Pentax history, especially among photographers who value the golden age of manual-focus optics. SMC Takumar lenses helped establish Pentax as a leader in lens coatings and compact, high-quality SLR systems. Today, these lenses are still widely used by enthusiasts who appreciate their classic optical signatures and excellent mechanical engineering.
Recommended Accessories
To get the most from this lens, consider pairing it with an M42-compatible body or a high-quality M42-to-mirrorless adapter, a 58mm protective or UV filter, a lens hood to help reduce flare, front and rear lens caps for storage protection, and a padded lens pouch for transport. On digital cameras, in-body image stabilization and focus aids can make handheld use even more enjoyable.
Usage Tips
For portraits, try shooting between f/2.5 and f/4 to balance subject separation with adequate sharpness. Because this is a manual-focus lens, take advantage of magnified live view when precision is critical. A fast shutter speed is recommended when shooting handheld at 135mm, especially on higher-resolution digital bodies or cameras without stabilization. If you are adapting the lens to a mirrorless camera, a simple mechanical adapter is typically all that is needed.
Brand
lens specification
| Lens Min. Focus Distance | 4.92' (1.5 m) |
| Lens Filter Size | 58mm |
| Dimensions | Approx. 2.8 x 3.7 in. / 72 x 93 mm |
| Minimum Aperture | f/22 |
| Diaphragm Blades | 8 |
| Optical Design | 6 elements in 6 groups |
| Image Stabilization | No |
| Weight | Approx. 14.8 oz / 420 g |
| Tripod Collar | No |
| Focal Length | 135mm |
| Angle of View (diagonal) | 18 b0 |
| Maximum Aperture | f/2.5 |
| Maximum Magnification | 0.12x |
| Focus Type | Manual |
| Mount Type | M42 |
used condition
| Used Condition |
- Used Pentax 135mm f/2.5 SMC Takumar M42 Mount lens
- Front lens cap (if included)
- Rear lens cap (if included)
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