By OptimusImage

from Albany, New York

About Me Pro Photographer


No weaknesses for a F4 zoom



  • Color rendering excellent
  • Nice Bokeh
  • Fast / accurate auto-focus
  • Good flare resistance
  • Sharp at all focal length


  • F4 may be slow for some


  • Portraits general
  • Landscape/Scenery
  • Weddings/Events
  • Video


This modest aperture zoom lens gets my heaviest use indoors and on location. Mounted on a high-ISO-capable Pentax KX, the F4 aperture is not a drawback in low light. Sharp at 17 through 70mm. Use it with confidence at F4. Stopping down gives marginally improved sharpness. Another plus is the distortion and chromatic aberration reduction engineered in the Pentax DA lenses communicating with the Pentax bodies. These in-camera corrections have saved me a lot of time in postprocessing. It is another reason I have not sought third-party lenses for the Pentax bodies. Could it be built even stronger? Yes, but additional weight could be a drawback. If you own a Pentax body and desire more focal-length range and IQ than the very good 18-55mm kit lens, you shouldn't be disappointed.

 Images from OptimusImage
Daybreak light in parking garage

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