Used Pentax 135MM F/2.5 SMC Lens - Good
Pentax

In Stock
Pickup at PhiladelphiaFree shipping
$119.95
Key Features
- Used Pentax SMC 135mm f/2.5 prime lens in Good condition with classic Pentax K-mount compatibility.
- Bright f/2.5 maximum aperture supports strong subject isolation and confident low-light shooting.
- Manual focus design offers precise control for portraits, detail work, and deliberate composition.
- Compact short-telephoto focal length is ideal for portraits, compressed landscapes, and vintage rendering.
- SMC coating helps reduce flare and ghosting while maintaining strong contrast and pleasing color.
In Stock
Pickup at PhiladelphiaFree shipping
$119.95
Have any questions?1-800-631-0300
OVERVIEW
The Pentax SMC 135mm f/2.5 is a classic short-telephoto prime lens designed for Pentax K-mount cameras. Known for its fast maximum aperture, solid all-metal construction, and traditional manual-focus handling, this lens remains a compelling option for photographers who appreciate vintage Pentax optics and a more deliberate shooting experience. The 135mm focal length has long been favored for portraiture, compressed perspective, candid work, and selective landscape compositions, and this SMC version continues that legacy with a distinctive rendering style and dependable optical performance.
Compatible With
- Pentax K-mount film SLR cameras
- Pentax K-mount DSLR cameras
- Compatible mirrorless cameras when used with an appropriate Pentax K-mount adapter
Classic 135mm Perspective
This 135mm focal length is especially useful when you want a tighter field of view than a standard lens without moving into very large telephoto territory. It is a strong choice for head-and-shoulders portraits, event candids from a comfortable distance, stage photography under good light, and outdoor details where background compression enhances visual impact. On APS-C Pentax digital bodies, the field of view becomes even tighter, making it useful for isolating distant subjects with strong separation.Bright f/2.5 Aperture
The fast f/2.5 maximum aperture is one of the lens's biggest advantages. It allows more light to reach the viewfinder and sensor or film plane, helping with focusing and low-light use. It also makes it easier to create shallow depth of field for portraits and artistic subject isolation. Compared with slower vintage 135mm lenses, an f/2.5 design offers more flexibility and a more premium shooting experience.SMC Optical Character
Pentax's Super Multi Coating helped make many of its vintage lenses highly respected among enthusiasts. The SMC treatment is designed to reduce internal reflections, helping control flare and ghosting while improving contrast and color fidelity. In practice, this contributes to the rich, natural rendering many photographers seek from classic Pentax glass. Images often display pleasing transitions from focus to blur, making the lens particularly attractive for portrait and creative work.Manual Focus Precision
As a manual-focus lens, the Pentax SMC 135mm f/2.5 offers a tactile, hands-on shooting experience. The focus ring is designed for careful adjustment, which can be beneficial when working with shallow depth of field. This makes the lens especially enjoyable for photographers who prefer precision over automation, whether shooting still subjects, portraits, or controlled studio setups. Focus peaking and magnified live view on compatible digital cameras can make adapting this lens even more rewarding.Build Quality and Design
Vintage Pentax prime lenses are widely appreciated for their robust construction, and the SMC 135mm f/2.5 is no exception. Its classic mechanical design emphasizes durability, smooth manual operation, and a compact form relative to many telephoto alternatives. The lens is portable enough for everyday carry in a small kit and feels well balanced on both film bodies and many digital cameras.Who This Lens Is For
This lens is a great fit for photographers interested in classic manual-focus optics, Pentax film shooters building a period-correct kit, and digital users exploring vintage rendering on K-mount bodies or adapted mirrorless systems. It is especially well suited to portrait artists, collectors of classic Pentax equipment, and anyone looking for a fast telephoto prime with character.Used Condition
Equipment rated as being in Good condition will have a small amount of cosmetic wear and some blemishes from regular use. Equipment rated as 'Good' will be anywhere from 80-90% of its original condition. Lenses may have slight scratches on the housing, but the glass elements are unmarked and very clean. Zoom and focus rings may show minor signs of fatigue and/or oxidation. This used item is warrantied by us for 180 days under the terms of the manufacturer's original warranty, and every effort is made to grade used items fairly and accurately.Usage Tips
- Use a lens hood to further improve contrast and reduce flare when shooting into strong light.
- For portraits, try shooting near f/2.5 to f/4 for flattering background blur and strong subject separation.
- On digital bodies, enable focus confirmation or use live view magnification for more accurate manual focus.
- A monopod or stable shooting stance can help maintain sharpness at slower shutter speeds, especially on higher-resolution cameras.
Recommended Accessories
- 58mm protective, UV, or polarizing filter
- Front and rear lens caps
- Lens hood for added flare protection
- Pentax K-mount compatible camera body or Pentax K-to-mirrorless adapter
- Padded lens case for storage and transport
- Lens cleaning cloth and blower for routine maintenance
Historical Perspective
The 135mm prime has long been a staple of film-era photography, valued for its reach, flattering compression, and relatively compact size compared with longer telephoto lenses. Pentax earned a strong reputation during this period for producing high-quality optics with excellent coatings and mechanical reliability. The SMC 135mm f/2.5 represents that tradition well, combining classic design with a versatile focal length that continues to appeal to photographers decades later.Brand
Pentax
lens specification
| Maximum Magnification | 0.12x |
| Diaphragm Blades | 8 |
| Image Stabilization | No |
| Dimensions | Approx. 2.5 x 3.2 in. (63.5 x 81 mm) |
| Maximum Aperture | f/2.5 |
| Focal Length | 135mm |
| Angle of View (diagonal) | 18 b0 |
| Mount Type | Pentax Q / K |
| Minimum Aperture | f/22 |
| Focus Type | Manual |
| Optical Design | 6 elements in 6 groups |
| Lens Filter Size | 58mm |
| Lens Min. Focus Distance | 1.5m/ 4.9 ft. |
| Tripod Collar | No |
| Weight | Approx. 15.5 oz (440 g) |
- Used Pentax SMC 135mm f/2.5 Lens
- Front lens cap (if included)
- Rear lens cap (if included)
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$119.95