Your promotion is active. Spend $99 or more for free shipping!

smcP DA 50-135mm f2.8 ED (IF) SDM

smcP DA 50-135mm f2.8 ED (IF) SDM

In Stock Ships within 1 business day

Item Number: PTX 21660

Product Information:

Lens Mount:


Lens Construction:

18 elements in 14 groups

Angle of View:

31.5 - 11.9 degrees (when used with PENTAX Digital SLR camera body)

Aperture Control:


Minimum Aperture:


Number of Diaphragm Blades:


Metering System:

TTL open-aperture metering

Minimum Focusing Distance:


Filter Size:


Maximum Magnification:


Dimensions (diameter x length):

3.0" x 5.4" (76.5mm x 136mm)


24.2 oz. (685g) without hood, 27.0 oz. (765g) with hood

  • High performance, telephoto zoom lens
  • SDM system creates smoother, quieter auto focus
  • Weather resistant and dust resistant body
  • Quick-shift Focus System for instant switching from auto focus to manual
  • Pentax SP coating protects the exposed lens elements
  • Three ED elements compensate for chromatic aberration
  • Developed specifically for Pentax digital SLR's
  • Focal length equivalent to 76.5mm to 207mm in the 35mm format


The PENTAX DA * 50-135mm F2.8 ED (IF) telephoto zoom lens is designed for exclusive use with PENTAX digital SLR cameras, delivering the highest level of ultimate optical image quality. With aspherical elements, special optical-glass elements and original lens coatings, this lens is superior in terms of contrast, clarity and edge-to-edge sharpness. The 50-135mm features tightly sealed, weather-resistant and dust-resistant construction to enhance durability for use in rain or dusty conditions. A new SDM system has been incorporated for smoother, quieter autofocusing operation using a built-in supersonic motor. It also features the PENTAX-original Quick-Shift Focus System for instant switching to manual-focus operation and PENTAX-original SP (Super Protect) coating to repel dust, water and grease.

What's in The Box:

  • smc DA* 50-135mm F2.8 ED (IF) Lens
  • Lens Cap
  • Rear Lens Cap B (31006)
  • Lens Hood
  • Lens Soft Case

Thanks for signing up with! Your promotion has been automatically applied.

Happy Shopping »

Sign Up & Receive Free Shipping!

Register for the latest news and discounts from and you'll receive free shipping on orders over $99!

Sign up now and we’ll apply your promotion automatically.

no thanks. continue shopping

* Offer valid for new subscribers only. Free shipping ONLY applies to standard shipping within the Continental US. Cannot be combined with any other offer or promotions.