Product description

Part of the star quality range of this 50-135mm lens is that it offers a wide f/2.8 aperture through out its range.

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.

Technical Specifications

Focal Length 50 - 135mm
Equivalent to 35mm format 75 - 202.5mm
Maximum aperture f/ 2.8
Minimum aperture f/ 22
Angle of View 31.5 - 11.9 degrees
Construction 18 elements / 14 groups
Focusing Range 1m - infinity
Magnification 0.17X Max
Filter size 67mm
Mount PENTAX K-AF
Weight 765g
Dimensions (Length x Diameter) 136 x 76.5mm
Kit Content Front cap Rear cap Lenshood Soft case

Special Features

Weather sealed

Quick Shift focusing

Super Protect coating

SDM focus motor