Panasonic Lumix DMC-LX7
Price as Reviewed:£450.00
Two years on from the Lumix DMC-LX5, Panasonic refreshes its flagship compact camera series with a class-leading fast Leica lens and 11fps burst mode. Read the Panasonic Lumix DMC-LX7 review...
Noise, resolution and sensitivity
Image: In these unedited JPEG and raw images, detail is much crisper in the raw file. However, the JPEG does a good job with the colours, resulting in bold, realistic blues
These images show 72ppi (100% on a computer screen) sections of images of a resolution chart, captured at the mid end of the zoom (approx 50mm). We show the section of the resolution chart where the camera starts to fail to reproduce the lines separately. The higher the number visible in these images, the better the camera’s detail resolution is at the specified sensitivity setting.
With the same 10.1-million-pixel resolution as its predecessor, it is impressive that the performance of the Lumix DMC-LX7 has been enhanced. Our resolution charts indicate increased centre sharpness, and the camera reaches the 24 mark in raw and the 22 mark in JPEG capture, when set to ISO 100 and an optimum aperture. More detail can be obtained from raw files. In JPEG images, there is a noticeable drop in sharpness at ISO 400, where luminance noise becomes apparent and noise reduction kicks in.
In the two years of the LX5’s lifetime, the expert compact camera market has moved on in terms of ability to resolve detail. For example, Sony’s Cyber-shot DSC-RX100 has an imaging sensor that is twice the size of the LX7’s (116mm2 compared to 49mm2) and twice the number of pixels, so it can resolve a significantly higher level of detail and produce prints at twice the size.
I found the LX7’s ability to resolve detail and control noise is affected dramatically by the chosen aperture and ISO settings. For the crispest detail f/2.8-4 is best, with the new Leica lens capable of good results.
Likewise, to avoid mushy detail that results from luminance and chroma noise, using a setting under ISO 800 is advisable. In the highest native setting of ISO 6400 (which is a 1-stop advantage compared to the LX5), detail is not great, and there is banding and bruising over shadow and midtone areas in the scene.
- AF Assistance: Yes
- Video: Up to 16:9 aspect ratio (1920 x 1080 pixels), 50fps or 25fps (AVCHD or Motion JPEG)
- Built-in Flash: Yes
- White Balance: Auto, 5 presets (all adjustable), 2 custom settings, plus Kelvin adjustment
- Memory Card: SecureDigital, SDHC, SDXC
- Viewfinder Type: No, optional EVF or optical viewfinder
- LCD: 3in LCD with 920,000 dots
- Output Size: 3648 x 2736 pixels (4:3 aspect ratio)
- Max Flash Sync: 1/2000sec
- Sensor: 1/1.7in (7.6 x 5.7mm) MOS sensor with 10.1 million effective pixels
- Power: Rechargeable Li-Ion
- Weight: 298g (with battery and card)
- Exposure Modes: Program, aperture/shutter priority, manual, iA, 2 custom modes, 16 scene presets, creative control with 16 presets
- Hotshoe: Yes – with accessory port
- Shutter Speeds: 250-1/4000sec in manual mode
- AF array: Up to 713 selectable depending on size and AF mode
- File Format: JPEG, and raw+JPEG simultaneously
- Lens: Leica DC Vario-Summilux 4.7-17.7mm f/1.4-2.3 (24-90mm equivalent)
- Drive Mode: Single, continuous 11fps for 12 images in standard mode, 5fps with AF tracking, 2fps low-speed burst, 60fps at 2.5 million pixels and 40fps at 5 million pixels
- Colour Space: sRGB
- Exposure Comp: Manual ±3EV in 1/3EV steps
- Metering System: Intelligent 23-area multi-segment, centreweighted and spot
- Dimensions: 110.5 x 67.1 x 45.6mm
- Focusing Modes: Normal, macro AF, quick AF, continuous AF, one-shot AF, macro, AF area select, AF tracking, plus manual
- ISO: ISO 80-6400, ISO 12,800 at 3-million-pixel resolution
- RRP: £469.99
- Connectivity / Interface: USB 2.0 Hi-Speed
- Compression: 2-stage JPEG