While the Panasonic Lumix DMC-GF3 isn't perfect, it's still among my favorite choices for snapshooters looking for a faster, better camera but one that's similar enough to a point-and-shoot -- or phone -- that they're not forced out of their comfort zone. The GF3's small size, well-designed touch-screen interface, fast performance, and solid photo quality -- and, for its type, a more-or-less reasonable price -- make it a compelling option. With the DMC-GF5, Panasonic makes some subtle updates and enhancements that improve on the GF3 for that same snapshooter.
Though it's the same resolution as the GF3, the GF5 incorporates a new version of the 12-megapixel sensor with an updated version of its image-processing engine. It shows some improvement in its noise profile and JPEG processing over the GF3, especially at low ISO sensitivities. That seems partly because the image coming off the sensor looks less noisy, an expected advancement from one generation to the next.
While there's a noticeable jump in noise-reduction artifacts between ISO 400 and ISO 800 in the JPEGs -- most notably smearing -- Panasonic has improved the processing of high-contrast areas. The lens you use makes a big difference as well: while I wouldn't suggest shooting JPEGs past ISO 400 with the 14-42mm HD kit lens, for a good prime lens I think I'd bump that to ISO 800.
In low light, it pays to shoot raw at ISO 800 or higher, as you can get much better results; better detail handling and less smeariness, although you do get a lot of clipping in the dark areas.
|Click to download||ISO 160
The colors look very good, and the default settings push saturation and contrast gently enough that there's no discernable hue shift. Bright, saturated reds do shift to orange in the JPEGs, but render properly in raw files. While it has a reasonable dynamic range, you do lose some detail in shadow areas that can't be recovered without introducing color noise. None of this is unusual in this price class, however. Metering and exposure is generally on target, and JPEG photos look slightly oversharpened but not crunchy.
Video quality is fine for typical consumer use -- vacation clips, cat antics, kiddie goal-scoring and so on. If you look closely you can see some edge artifacts and there's some rolling shutter (wobble), but the exposures are good and you can tell what's going on in low light. The full-time autofocus pulses a bit, but works well enough.
While the GF3 is fast, the GF5 is faster. Wake-up time is on the slow side -- if you can really consider 1.4 seconds slow -- mostly because the HD kit lens we tested with has to zoom out before it can focus and shoot. It takes only about 0.2 second to focus and shoot in good light and about 0.3 second in dim. Two sequential shots runs about 0.3 second for JPEG and 0.4 for raw; unfortunately, adding flash recycling time slows things down quite a bit, to 1.7 seconds. With a fast card the camera can maintain a JPEG burst for about 15 frames at 4.2fps, after which the pace drops to about 2fps. As you'd expect, raw burst is a lot more limited: four frames at 4fps, then 1.2fps and slower thereafter (it gets inconsistent).
More important from a performance perspective, the camera never slows you down while shooting, a problem which I've encounted with some of the higher-resolution models. Shooting raw+JPEG feels fast and fluid and I never had to wait for the camera to finish writing an image file before I could review a shot or change settings. The LCD is sufficiently visible in direct sunlight -- essential, since the camera doesn't support an add-on viewfinder.