Panasonic Lumix DMC-LX7
The Panasonic Lumix DMC-LX7, or LX7, is a high-end compact "point and shoot" camera launched by Panasonic in 2012 to succeed the LX5.
Features
The LX7 has:.- High sensitivity 1/1.7-inch MOS sensor
- 24 – 90 mm ultra wide-angle f/1.4 - 2.3 LEICA DC VARIO-SUMMICRON lens
- POWER O.I.S
- 3.0-inch TFT LCD
- Optional full manual operation
- HD 1080p/60 quality movie clips in AVCHD and Motion JPEG format
- HDMI output
Lens
The Leica lens is unusually fast for a compact camera, with a maximum aperture of f/1.4. The 3.8× maximum zoom of the lens is relatively limited, however, and zooming limits the aperture. For example, at 2× optical zoom, the maximum aperture is f/1.8, and at 3.8× zoom it is f/2.3.No lens correction is applied to files stored in RAW mode. The following table provides empirically determined lens distortion factors that can be used with the GIMP image processing software’s “Lens Distortion” plug-in to approximate the lens-correction provided by the camera in its JPEG images:
| Focal Length | Main | Zoom* | Brighten |
| 4.7 | -23.0 | -1.2 | +15 |
| 5.1 | -21.5 | -0.9 | ? |
| 5.5 | -16.7 | -1.2 | ? |
| 5.9 | -12.5 | -0.9 | ? |
| 6.3 | -10.0 | -0.9 | ? |
| 8.4+ | 0 | 0 | 0 |
The experimental estimates for the “zoom” value do not follow any consistent curve, and a constant “zoom” value of -1.0 may be appropriate.