Panasonic Lumix DMC-LX100 Review
Performance - How well does it take pictures?
Ultimately, a camera is only as good as the photographs it produces. For this reason, the ratings in our digital camera reviews is based primarily on image-quality. The Panasonic Lumix DMC-LX100 is a rare premium digital camera to combine a large sensor with a bright optical zoom. This makes it possible to deliver superb images while remaining highly versatile.
The LX100 takes a 16 megapixels Four-Thirds CMOS sensor and extracts 10 - 12.5 megapixels from it capture high-resolution photographs at multiple aspect-ratios. This sensor, being shared with current Micro Four-Thirds mirrorless, is capable of high-quality output, albeit at slightly smaller print-sizes since its edges are not entirely used in the LX100.
Given its relatively compact size, this digital camera competes directly with other premium offerings rather than mirrorless ones. Among those, those few that offer larger sensors have limiting prime lenses. With exception to the Canon Powershot G1 X Mark II
Canon Powershot G1 X Mark II, every other one with a zoom uses a sensor at least 50% smaller linearly. That means at least 4X less light-gathering ability which is the primary indicator of image-quality.
Image-noise is virtually absent from ISO 100 to 800. At 12 megapixels, moderately large prints up to 18" x 12" appear impeccable. ISO 1600 shows a very slight noise-pattern while maintaining fine-details exceptionally well. This noise is unlikely to be visible at less than 100% magnification.
ISO 3200 is surprisingly similar. It only slightly more noise than ISO 1600 and fine-details are still well-preserved. One can easily make a medium-sized print from this output. Even large prints look good from a slight distance. SIO6400 is visibly noisy yet still good enough for common print sizes.
At ISO 12800, images have more noise but most of it is luminance noise. Details become visibly softer due to noise-reduction. Mid-size prints appear quite reasonable although will show mushy details upon close inspection. As one would expect, ISO 25600 is notably worse. Still, it does not show much softness and can be used for small prints without much concern.
Noise-Reduction is controllable in 11 steps, with the middle default of 0 being slightly aggressive. Tuning Noise-Reduction down to -2 improves output considerably, maintaining a good balance between image-noise and preservation of details.
Colors of the Panasonic LX100 are problematic for those shooting JPEG images. Despite numerous Photo Styles and image-parameters, colors never look real and are always too red. Closest colors are obtained using Neutral style with Saturation at -1. In Neutral style, the default Contrast is somewhat dull. Pushing it to +1 corrects things without much effect on dynamic-range.
White-Balance is much improved in the LX100 compared to preview premium Panasonic cameras. The AWB setting is still not great but produces much more neutral results overall. Under artificial lighting, it struggles more than usual, often leaving a strong yellow cast. Combined with the fact that colors are too red, this can produce an unusual an orange tint. Custom WB works very well though, so the AWB issue is avoidable with time and discipline.
The Multi-Segment metering of this digital camera is good. Most exposures are well balanced and clipping only occurs regularly in the presence of small bright highlights. The metering system balanced such that it will over-exposure slightly more frequently than under-expose. This produces more print-ready images at the expect of more lost highlight details.
The dynamic-range of this Panasonic is outstanding. That it rivals mirrorless cameras in such a compact size puts it ahead of nearly every other premium compact. For scenes which exceed the dynamic-range of its sensor, the LX100 has one of the best Built-in HDR implementation. It produces a nicely blended image from 3 exposures without weird tonalities often seen in HDR images.
The Leica DC Vario-Summilux lens on the LX100 is its crowning achievement. It manages to cover a 2.2X crop-factor while delivering an ultra-bright F/1.7 maximum aperture at wide-angle which diminishes just over one stop to F/2.8 after zooming 3.1X optically. The lens barrel goes from 2½" at wide angle to just 3¼" at telephoto and collapses down to 1 1/8" when off. There simply are no similarly specified lenses!
Optically, this lens is impressive. It shows excellent sharpness in the center at all focal-length and apertures. Edges are certainly soft wide-open, gradually sharpening towards the middle. One stop down from wide-open, there is still some softness along edges but not enough to be visible in common print sizes. Starting at F/4 near wide angle and F/5.6 near telephoto, it becomes sharp edge-to-edge.
Short lenses such as this 24-75mm F/1.7-2.8 tend to show some distortion and the one on the LX100 is no exception. From 24 to 30mm, there is a small but noticeable amount of barrel distortion. Zooming in further, straight lines always appear straight.
There is absolutely no sign of vignetting or chromatic aberrations. Panasonic usually corrects for these in software and the LX100 appears to do an excellent job at it. This lens is also remarkably resistent to flare, which is great because it has no hood nor provision to add one.
Unlike the smaller LX7, the LX100 does not feature a built-in ND filter. However, there is a 43mm filter-thread at the front of the lens. No word on compatibility though and some filters may cause vignetting which the camera would not be capable of correcting.
Once on, the Lumix LX100 is generally quite responsive. The camera starts reacting immediately to most button presses and continues to do so while it writes to the memory card. For long exposures, the camera optionally employs dark-frame substraction which locks it up for a duration equal to the exposure time. A nice touch is that the LX100 counts down the exposure time and the dark-frame substraction time, so the photographer knows how much patience is needed.
The performance of this compact digital camera is characterized by the following measurements:
- Power On: 2s. Average.
- Autofocus: Mostly under ¼s. Up to ½s in very low-light. Superb.
- Zoom: 3s from wide to tele. Glacially slow considering its short 3.1X zoom.
- Image Shutter-Lag: Instant. Excellent.
- Video Shutter-Lag: 1s. Below average.
- Black Out: ¼s. Excellent.
- Shot-to-Shot speed: Just over ½s. Very good.
- Time-to-first shot: 2½s. Good considering most of that time is spend powering on.
- Playback: ½s to exit. ½s to enter when last file is a still, 2s when it is a video.
- Power Off: 3s. Slow. This is from wide-angle. It takes longer with the lens zoomed in.
The Panasonic Lumix DMC-LX100 is truly fast where it counts the most.. Autofocus and shot-to-shot speeds are particularly good. The zoom speed could really stand to be improved though. Other below average aspects are of minor importance to photographers.
Battery-life of the Panasonic LX100 is quoted as 350 shots-per-charge, according to the CIPA measurement standard. This number is highly optimistic and with prefocus, stabilization and image review turned on, the LX100 falls slightly short of it. This is on the below average, so a second battery is recommended for long days of photography.
Performance - How well does it shoot video?
The Panasonic Lumix DMC-LX100 is one of the smallest digital cameras to record full 1080p HD video at 60 FPS with stereo sound. It saves such videos using the efficient AVCHD codec which also supports 1080p @ 30 FPS and 720p @ 60 FPS. Additionally, it can use the standard and easier to manage MPEG-4 codec for 1080p, 720p and VGA video but only at 30 FPS. A High-Speed Video mode captures 720p video at 120 FPS using the MPEG-4 as well.
Automatic video can be recorded in any mode by pressing the dedicated Video-Record button. Recording starts after an annoying 1s lag. The same button also stops video recording and unfortunately cuts off the last second from the video, so remember to wait after the action finishes to press the button.
Manual exposure is possible in Video mode. All PASM modes are available with the ISO range limited to 6400 and shutter-speed to 1/8s which is oddly slower than the frame-rate. The LX100 goes one step further by allowing exposure parameters to be changed during filming. One must be careful though since it is easy to jerk the camera while going so. Aperture ring clicks get recorded by the built-in microphone, so it is best to do this with an external one.
It is possible to zoom and focus while recording video. The zoom moves extremely slowly to avoid adding noise to the sound track. In AF-S mode, focus is locked before recording starts by pressing the shutter halfway. In AF-C mode, focus is continuously adjusted. Either normal or Face-Detect autofocus is available in AF-C mode.
The Panasonic Lumix DMC-LX100 produces videos of excellent quality and its 60 FPS frame-rate renders motion smoother than any other compact digital camera to date. Details are rendered sharply without easily noticeable artifacts. Panning with the LX100 is simply impressive. Color and white-balance behave exactly as in image mode, being good but not perfect, particularly under artificial light. All metering modes are available for videos and the camera adjusts very smoothly when brightness changes.
Video performance of the LX100 is really great except for the 1s delay and 1s cut-off at beginning and end of video, respectively. With some anticipation and practice, these issues can be overcome. Once past these, it is easy to appreciate the quality of videos produced by this digital camera.
The Panasonic Lumix DMC-LX100 is an entirely new premium digital camera. It combines the same sensor-size as Panasonic mirrorless cameras with an ultra-wide and ultra-bright 3.1X optical zoom lens into a relatively compact body.
The LX100 truly achieves an unprecedented balance of image-quality, size and versatility with its multi-aspect-ratio 2.2X-crop sensor and quality Leica optics. Image-noise, exposure, dynamic-range and sharpness are all very good, while color and white-balance could use some improvement yet are fixable by shooting RAW or using basic image-processing.
This premium camera is exceptionally fast with a very quick shutter-lag and speedy autofocus system. Shot-to-shot speeds are also great, leaving only a really slow zoom and short video-recording lag to complain about in terms of speed. Video performance otherwise is good, delivering high-quality output with fine details and smooth motion.
The LX100 provides a high number of direct controls, including dedicated dials for aperture, shutter-speed and exposure-compensation. A control-ring, aspect-ratio selector, generic control-dial and several customizable buttons complete the interface, making all important photographic functions easily accessible. Given its compact size, some controls are crowded and prone to accidental changes.
Overall, the Panasonic Lumix DMC-LX100 delivers a unique and solid premium digital camera experience. There is no doubt this is an excellent and highly capable camera, earning it the highest rating of any Panasonic digital camera for its class-leading combination of image-quality, performance and ergonomics.
Panasonic DMC-LX100 Facts
|12 Megapixels Fixed Lens||ISO 100-25600|
|3.1X Ultra-Wide Optical Zoom||Shutter 1/16000-60s|
|Built-in Stabilization||Full manual controls, including Manual Focus|
|0.38" Built-in EVF 2.8 Megapixels (0.70X)||Custom white-balance with 2 axis fine-tuning|
|Automatic Eye-Start sensor||Spot-Metering|
|2 Axis Digital Level||Hot-Shoe|
|11 FPS Drive, 8 Images||Lithium-Ion Battery|
|3840x2160 @ 30 FPS Video Recording||Secure Digital Extended Capacity|
|3" LCD 920K Pixels|
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