Panasonic 14-42mm PZ review

Panasonic 14-42 mm f/3.5-5.6 ASPH POWER OIS LUMIX G X VARIO PZ & Panasonic Lumix GX1

Size and weight make the Panasonic 14-42 mm X zoom lens, introduced at the end of 2011, an unique interchangeable zoom lens with a viewing angle which equals a 28-84 mm zoom lens on a full frame camera. The Panasonic 14-42 mm X powerzoom is, combined with the Panasonic GX1 just as compact as a high-end compact camera like Powershot G; it easily fits in a large  pocket. But is the Panasonic 14-42 mm X better than its cheaper and larger predecessor, the Panasonic 14-42 mm?
Results in this review are based on standard in-camera jpg files. De image ratio of the camera has been set to 2:3, which enables comparing the measurement results with our measurements of lenses on a camera with an APS-C or full frame sensor. For further information on the test method, see the FAQ.

Panasonic 14 42mm-X-review

Specifications

NamePanasonic 14-42 mm f/3.5-5.6 ASPH POWER OIS LUMIX G X VARIO PZ
Test CameraPanasonic GX1, M43
Smallest focusing distance (cm)20
Magnification Ratio0.17
Elements / Groups8-Sep
Dimensions: Length x Diameter (mm)27 x 61
Filter size (mm)37
Hood inluded
Weight (g)95
MSRP (NL) euro399 (05/2012)


 
Panasonic 14-42 mm review

Panasonic 14-42 mm X review

Panasonic 14-42 mm review


The 3x zoom range of the Panasonic 14-42 mm X equals a viewing angle of a 28-84 mm zoom lens on a camera with a full frame sensor. 

Construction and autofocus

The Panasonic 14-42 mm PZ X zoom lens is well built. The advantage of smaller lenses for micro-43 camera's with respect  to APS-C or full frame cameras is very large here. During transport the  Panasonic 14-42 mm X is even smaller.

Focusing and zooming takes place through levers on the lens. Those who are used to using a compact or video camera might find this familiar. When you're used to a SLR type camera, you will need some time to get accustomed.

Panasonic14 42mm-X-test

The autofocus is fast, silent and accurate. Micro-43 camera's gfocus using the sensor signal, and therefore don't have any front focus or back focus.

Image stabilization

This lens has built-in image stabilization which has to be operated from the camera menu in stead of a switch on the lens itself. We haven't tested the Image stabilization.

Vignetting Panasonic 14-42mm Powerzoom

Starting at a focal length of 17 mm, vignetting is acceptable even at fully opened aperture. When stopped down two stops, there is no more visible vignetting left at a focal length of 14 mm. Vignetting is easily corrected by software, so it surprised us that Panasonic didn't correct for vignetting in-camera.

Panasonic-14-42-X-vignet

Distortion Panasonic 14-42 mm X

For a zoom lens distortion is very well corrected for in the design of the Panasonic 14-42 mm PZ. Barrel shaped distortion is visible at focal length of 14 mm and 42 mm, but at other focal lengths absent. Distortion can be corrected afterwards by photo editing software.

Panasonic-14-42-X-distortion

Bokeh

Bokeh is not too well with this lens, as expected, since this lens doesn't have a wide aperture and micro-43 sensors are small compared to full frame sensors.

Move your mouse over the image to see a 100% crop where you see the red rectangle now.

Panasonic14 42mm-X-review-bokeh2

Flare

The Panasonic 14-42 mm PZ X has a special multi-coating in order to minimize flare and ghosting. Nevertheless you can experience flare when there's a light source just outside the image. Panasonic-14-42-X-praktijkvignet

Resolution Panasonic 14-42mm Powerzoom

The resolution of Panasonic 14-42 mm X jpg files is high over the entire zoom range. Sharpness in the extreme corners lags behind at all apertures, as can be seen from Imatest measurements.

Panasonic1442X1review-resolutie
Panasonic 14-42mm f/3.5-5.6 ASPH POWER OIS LUMIX G X VARIO PZ @ 19 mm f/5.6

The resolution of the Panasonic 14-42 mm X equals or outperforms the resolution of the regular Panasonic 14-42 mm. At a focal length of  35 mm the overall optical quality of the Panasonic 14-42 mm X is almost equal to the performance of the famous Panasonic 20 mm lens. See our overview of tested micro-43 lenses to compare this lens with other micro-43 lenses.

Panasonic-14-42-X-resolution3

Chromatic aberration Panasonic 14-42 X

Panasonic corrects in-camera for chromatic aberration. This delivers jpg files where there's no visible chromatic aberration. Here the Panasonic 14-42 mm X outperforms the old Panasonic 14-42 mm. Panasonic-14-42-X-CA3
Even a 100% crop from the extreme corners doesn't show any  visible chromatic aberration, as you can see in this image.

Panasonic14 42mm-X-review no CA

 

Conclusion Panasonic 14-42mm  review

Panasonic 14-42mm f/3.5-5.6 ASPH POWER OIS LUMIX G X VARIO PZ

Panasonic14 42mm-X-review

JPG file score

Test Camera (jpg)Panasonic GX1
Focal length14-4214182542
mm @ full frame (FF)28-8428355084
Final score7.477.77.67.3
Resolution6.86.76.96.87
Chromatic aberration8.78.48.78.89
Vignetting8.278.98.98
Distortion75.78.68.15.7

See our list of tested lenses or our list of tested micro-43 lenses to compare the performance of this lens to other lenses.

Pros

  • Good optical performance, especially for resolution at focal lengths beneath 25 mm
  • Very compact
  • Built in Image Stabilization
  • Powerzoom (especially for video)

Cons

  • Relatively high price
  • Focusing and zooming using levers needs practice
  • Visible vignetting at 14 mm up to aperture 5.6

The Panasonic 14-42 mm X powerzoom is, given its size and weight, an unique interchangeable zoom lens. Focusing and zooming takes place through levers on the lens. Those who are used to using a compact or video camera might find this familiar. When you're used to a SLR type camera, you will need some time to get accustomed. When you compare the performance of the Panasonic 14-42 mm X  with the cheaper Panasonic 14-42 mm, the Panasonic 14-42 mm X scores a little bit higher. This is mainly because of the low chromatic aberration of the Panasonic 14-42 mm . When you add the optical performance to the compact size and the powerzoom, you will forget the higher price completely  within a few weeks.  

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