LightZone (64-bit) v4.1.6

LightZone is an free and open source photo editing software to manipulate photos, with great effects and styles and finely adjustable tools.

LightZone is designed for photographers and differs in many fundamental ways from pixel painting programs that force you to think in terms of pixels or use complex mathematical concepts like histograms and curves. LightZone uses a model based on the physics of light and methods derived from the experience of photographers through the decades -- in the field, behind the camera, and in the darkroom.

LightZone comes bundled with many ready-made styles that in many cases enable you to improve the appeal of your photos dramatically with a single click. It divides an image into 16 "zones". Each zone varies in brightness from the ones next to them by 50%, and you can easily manipulate the zones to change brightness and contrast.

The Relight tool allows you to "relight" all or parts of your photo as if the lighting were different when you took it.

The ZoneMapper tool allows you to adjust the brightness and contrast of your photo for any combination of the highlights, midtones, or shadows in a way that is far more intuitive than using either "levels" or "curves" tools found in other applications.

LightZone can open and edit raw files as easily as TIFF or JPEG. Raw files from Canon, Fuji, Kodak, Leaf Valeo, Leica, Minolta, Nikon, Olympus, Panasonic, Pentax, and Sony cameras are supported. Therefore, there is no need for an intermediate "raw conversion" step. Additionally, LightZone can open DNG files.