REVIEW / Panasonic Lumix GX1

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Wait! There's a newer generation of this model: Panasonic Lumix GX7
Franck Mée Published on December 20, 2011
Updated on December 20, 2011
Translated by Catherine Barraclough
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  • Sensor CMOS 16 Mpx, 4/3" , 7 Mpx/cm
  • Lens NAx 14-42 mm f/3.5 -5.6
  • Stabilisation Depends on lens
  • Viewfinder NA
  • Screen 7.5 cm, not TN, 460000 dots, 3:2, Monopoint
  • Sensitivity (ISO range) 160 - 12800 ISO ext. 101 mm
While Panasonic's GF cameras have been moving away from the expert market towards beginners, the absence of a genuinely advanced interchangeable lens compact in the firm's camera range was starting to be felt. However, Panasonic is filling that gap with the Lumix GX1—a camera with the same boxy design and wealth of physical controls as the now-defunct GF1, but which has also been treated to some of the new features seen in more recent Panasonic 'G' cameras, like an updated sensor, Full HD video and a touchscreen.


The GX1 is a direct descendant of the GF1. That's obvious from the moment you pick the camera up, as it has the same high-end metal build, the same plain, boxy design, the same PSAM mode dial, the same clickable settings thumb-wheel etc. One major new addition is the rubber grip handle. This is deeply set for improved grip (your middle finger is nice and stable), and means you can easily use the camera with one hand.

A less immediately visible, but just as welcome, new feature is the customisable interface. The Quick menu is entirely customisable (with up to 12 settings over three pages!), and the two Fn buttons plus two zones on the right of the touchscreen can be assigned the functions of your choice. Here, the GX1 boasts the same flexibility as Panasonic's G3, as you can set it up in line with your preferences and keep your most frequently used settings to hand. The touchscreen is handy for selecting the subject of your shots, but can also be used to take a photo without using the autofocus control or shutter-release button.

Otherwise, the GX1 handles like a Panasonic—the controls and GUI are effective, generally practical and clear, and our only minor compliant is that the menus can sometimes be a bit dense (and the touchscreen doesn't work in the menus either). Note that like all Lumix cameras, the GX1 has an iA mode, which means that a good 90% of the time you won't even have to bother using the manual settings. Although that's not really the point of this camera, it can still be handy, especially if you lend your camera to a less-experienced user.

Panasonic GX1 review

The GX1 has the same LCD as the GF3, as the test results from our lab came back virtually identical. Contrast is therefore a little excessive, but only slightly, and blue is still the dominant shade. Colour fidelity isn't spot on, but while you'd certainly see the difference between this LCD and a correctly calibrated monitor, in real terms, it's not that bad. In fact, the screen is perfectly pleasant to use, even if the OLED display in the Olympus E-P3 and the LCD displays in Sony's NEX cameras are sharper and more detailed.


In the past, Panasonic G-series cameras have always come off pretty well in this field, and the GX1 is no exception. Performances are good, with the autofocus taking around 1/4 of a second at all focal lengths (1/2 of a second in low light). Photo-to-photo turnaround takes under a second and the continuous shooting mode snaps at 4.5 frames per second.

Panasonic Lumix GX1 review - speed

But is the GX1 slowed down by the new 14-42 mm X-series lens—the first 'pancake zoom' to hit the market? We were pleasantly surprised actually, as deploying this ultra-compact zoom doesn't seem to slow down the camera's start-up time—the GX1 can still take a photo 1.3 seconds after you switch it on.

Picture Quality

The Panasonic GX1 has almost identical internal electronics to the G3. In fact, the principal differences between this camera and the GX1 are its design, its fixed LCD and its lack of viewfinder.

Panasonic GX1 review- picture quality

Both cameras therefore handle sensitivity in very similar ways. At 100% size, like the test shots above, there are a few differences in the way this camera goes about preserving detail, and the map contour lines and the '100' printed on one of the circuit board components appear slightly more smoothed at high ISO settings. However, in real-life situations like 8" x 10" prints (20 x 27 cm) and onscreen viewing, the difference in quality is negligible. Picture quality is perfectly fine up to 1600 ISO, and 3200 ISO can still be used so long as you don't go looking at your prints under a magnifying glass. However, at 6400 ISO noise becomes too much of a problem.

We're certainly very keen to see what Panasonic's new 14-42 mm X lens (see inset) is made of. For a lens that's so compact, and with elements that are clearly going to have to move quite a lot when you power up, can this pancake zoom really match the quality of standard 14-42 mm zoom lenses (like Panasonic's non-X models)? Let's take a look.

Panasonic GX1 - lens
Compare the Panasonic Lumix GX1 to other cameras in the Face-Off

At wide-angle settings, 100% size shots show that the standard lens does a slightly better job—contour lines and welding on the circuit board come out better with the G3 (which has an identical sensor to the GX1). However, the X-series lens still holds its own, as this slight difference in quality is hardly even visible on standard sized prints. What's more, the new lens is very consistent, and in the corners of the frame, the X-series lens does a marginally better job—again though, this difference is minute, and completely invisible on an 8" x 10" print.

At telephoto settings, the new lens lags behind the old one, and this time the difference in quality is visible in the corners of 8" x 10" photos ... but only if you look very closely! On the whole, the 14-42 mm X-series lens is actually a pretty nice surprise, and is good enough to silence critics who were sceptical about its size. Quality is never very far behind that of the bulkier equivalent and the compact design is clearly a plus. Obviously, photographers who are used to lugging around equipment in a rucksack will still prefer the manual model, but this lens makes a great alternative for anyone who's space conscious.

Note that some users have complained that the stabilisation system doesn't always work properly in certain conditions (1/160 sec. at 42 mm) but we didn't notice any such problems in the model we were sent to test.


The GX1 has the same video modes as the GF3 and G3, filming Full HD at 25 frames per second with a sharp image that's quite highly contrasted but pleasant to watch. Noise levels are kept in check too. The autofocus works well, although we did notice some slight pumping, and the zoom motor is slowed down for smooth transitions.

Sound is captured with relative accuracy in day-to-day conditions and the stereo effect is well rendered. However, in very quiet scenes a slight hiss can be heard and a slight buzzing noise is picked up from the zoom. Note that, like the G3, the GX1 only has a remote control socket, so you can't hook up an external microphone like you can with the GH2.
Pancake Zoom
The GX1 is the first camera we've tested with the new Panasonic 14-42 mm X lens. While the lens has the same tech specs as the firm's standard 14-42 mm lens, this new X-series model is incredibly compact. It's the first 'pancake zoom' lens we've seen, and its total length is much shorter than its diameter, making it the smallest micro four-thirds lens available when collapsed and out of use. It is, for example, much smaller than Olympus' collapsible models (see above, the first generation Zuiko 14-42 mm, praised for its compact design when released).

For a camera like the GX1, this has clear advantages, as when loaded with this lens, the camera is barely even 6 cm thick. The GX1 can therefore easily be slipped into a large jacket pocket or a small bag. In fact, when fitted with this lens, the GX1 is about the size of a consumer camcorder.

The 'X' has another advantage too—it's equipped with electronic zoom and focusing levers on the side of the lens. This can take a while to get used to in photo mode, even if you can adjust the speed of the zoom motor, but it's perfect for smooth zooming in video mode without the fits and starts of a mechanical zoom.


  • Sturdy metal body
  • Customisable interface, loads of controls and settings
  • Very good picture quality (sharpness and noise control up to 1600 ISO)
  • Full HD video with stereo sound
  • Compact zoom lens with electronic controls (good for smooth videos)


  • Noisy shutter
  • No manual video modes or mic socket
  • Electronic zoom controls (slight lag when changing focal length)


The Panasonic Lumix GX1 is an excellent successor to the GF1, bringing a host of great new features from Panasonic's bulkier cameras (G3) and consumer models alike (GF3). This pleasant and effective hybrid compact is ideal for anyone looking for fast access to all kinds of settings and manual controls.
4 Panasonic Lumix GX1 DigitalVersus 2011-12-20 09:00:00
Compare: Panasonic Lumix GX1 to its competitors
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