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Pentax smc DA* 50-135mm f/2.8 ED (IF) SDM

RRP £1,099.99  £899.00


Pentax smc DA* 50-135mm f/2.8 ED (IF) SDM

This fast-aperture telephoto zoom is a popular choice for sport, wildlife and wedding photographers. With outstanding construction and image quality, the fast f/2.8 maximum aperture helps to isolate subjects from the background.

  • Fast aperture zoom lens for Pentax K-Mount cameras
  • Part of Pentax’s DA* series, made using the very best optical components
  • Fast f/2.8 maximum aperture ensures great shots in low light
  • Versatile zoom range provides a host of framing options
  • Gives effective focal length of 76.5-207mm on a Pentax DSLR
  • Supersonic Direct-drive Motor for fast, quiet auto focus
  • Extra-low dispersion (ED) lens elements delivers superb optical performance
  • Super multi coating reduces flare and ghosting
  • Weather sealed construction
  • Minimum focusing distance of just 1m
  • 67mm filter diameter
  • Supplied with lens hood

Park Verdict

A superb telephoto zoom lens. Superb optical quality and construction is matched with a fast f/2.8 maximum aperture throughout the zoom range, whilst dust and weather sealing mean you can take it anywhere.

We Love

 Fast f/2.8 maximum aperture allows hand-held shooting in low light
 Superb image quality with edge to edge sharpness and clarity
 Supersonic Direct-drive Motor for fast, accurate focusing

Full Details

1. Highest level of optical quality
The new smc PENTAX-DA* series has been developed through PENTAX's unending
pursuit of the ultimate image quality in digital photography. Bringing together its
advanced optical technologies, including aspherical elements, special optical-glass
elements and original lens coatings, PENTAX successfully developed a new
interchangeable lens series that is superior to any existing lens series in terms of contrast,
clarity and description, even at the edges.

2. Innovative SDM System for smoother, quieter autofocusing operation
These two new smc PENTAX-DA* zoom lenses come equipped with a new SDM System,
which assures smoother, quieter autofocusing operation using a built-in supersonic motor.
When mounted on the PENTAX K10D digital SLR camera body, the focus mode is
automatically switched to SDM-assisted autofocusing.* When mounted on other PENTAX
digital SLR camera bodies, the conventional autofocus mode using a camera-mounted
motor is selected.
* The PENTAX K10D firmware must be updated to take advantage of this automatic switching function.

3. Reliable weather- resistant and dust-resistant construction
The smc PENTAX-DA* series features a tightly sealed, weather-resistant and
dust-resistant construction to enhance durability for use in the rain or at the dusty

4. Original Quick-Shift Focus System for instant switching to manual-focus operation
The PENTAX-developed Quick-Shift Focus System allows the user to instantly switch to
manual-focus operation without any mode changes, after the subject is captured in focus
by the AF system. This user-friendly system can be used in both the SDM-assisted
autofocus mode using a lens-mounted supersonic motor and the conventional autofocus
mode using a camera-mounted motor.

5. SP coating to protect the lens against water and grease
The PENTAX-original SP (Super Protect) coating is applied to the front surface of this
lens. Through a vapor deposition process, the lens surface is coated with a special fluorine
compound to repel dust, water and grease, making it easy to wipe off fingerprints and

6. Digital SLR-exclusive optical design
This lens is exclusively designed for use with PENTAX digital SLR cameras, with an
image circle perfectly proportioned to the CCD size (23.5mm x 15.7mm), and optics
optimized for digital imaging characteristics. Combining high-quality image reproduction,
it is a perfect partner to PENTAX digital SLR cameras.


Lens mountPENTAX KAF2 mount
Lens construction18 elements in 14 groups
Angle of view31.5-11.9°
Aperture controlAutomatic
Minimum apertureF22
Number of diaphragm blades9
Metering systemTTL open-aperture metering
Minimum focusing distance1.0 m
Filter size67mm
Maximum magnification0.17X
Dimensions (diameter x length)76.5mm x 136mm (3.0 inches x 5.4 inches)
Weight685g ( 24.2 oz) without hood, 765g ( 27.0 oz) with hood



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