The parameters in the CCD are the number of LUX is better, or is it better to be small

Lux seems to be used to measure flash.

This kind of ordinary models of Leica are actually Panasonic's sister machines, that is, Panasonic's core is replaced with Leica's shell, and it is produced by Panasonic. For example, D-LuX5 is Panasonic LX5, V-LuX2 is Panasonic is ZS7, and V-LuX30 is ZS10.

Panasonic's new models now generally use back-illuminated CMOS, so the new models of Leica's ordinary digital cameras have become CMOS.

In terms of image quality, Leica is better than Canon SLR (the worst lens), it will present its own characteristics, depending on what should be a SLR, V-LUX20 is actually the Leica version of Panasonic ZS7, a card telephoto only,

Cost Savings Leica is now following the Japanese business routine

lux is a unit of brightness that represents the brightness of a candle at a distance of one meter. Then you can see the huge difference in camera sensitivity between black and white and color conditions. Theoretically, black-and-white cameras do not need to distinguish colors, and the sensitivity is greatly improved. In addition, the black-and-white machine can sense infrared light.

The illumination of black and white is lower than that of color, and the resolution of black and white is higher than that of color.

Recently, I have also encountered this problem.

The unit of sensitivity of different manufacturers has different expressions, lux·s is the unit of **, j is the unit of irradiation, e is the electron, and the latter three represent the corresponding voltage in the case of the unit **, irradiance, and the number of electrons.

420 lines refer to the horizontal resolution of the camera as an indicator of the horizontal resolution, which is measured in line pairs, that is, the number of black and white line pairs that can be resolved after imaging. The resolution of the commonly used black and white camera is generally 380-600, and the color is 380-480, and the larger the value, the clearer the image.

The sensitivity of the camera is usually indicated by the minimum ambient illumination requirements, and the sensitivity of the monochrome camera is about lux), and the color camera is mostly above 1 lux. The camera is used for ordinary surveillance occasions; The camera is recommended for use at night or when ambient light is low.

When used with NIR LEDs, low-light cameras must also be used. In addition, the sensitivity of the camera is also related to the lens, which is equivalent to.

There are 3 commonly used imaging sizes for CCD"The smaller the imaging size, the smaller the size of the camera, the smaller the volume can be made. Under the same optical lens, the larger the imaging size, the larger the field of view.

1 3" Sony color CCD: refers to the chip that converts optical signals into electrical signals using the electrical coupling technology produced by Sony company, which is one of the core components of the camera;

Noise ratio >48db: This refers to the noise ratio of the analog signal of the camera, the higher the noise ratio, the stronger the anti-interference ability, and the attenuation caused by transmission will be less, the better the image quality, 48db is now more common in the security monitoring industry;

Minimum illumination: refers to the lowest illuminance threshold that the camera can withstand when it meets the ** image infinite damage assessment not lower than the four-level standard, which can be measured by taking the illuminance meter to directly test the illuminance of the site.

B4203S1 is the model of the camera, 1 3"It refers to the size of the CCD in the chip used is 1 3 size, and the color CCD means that the illuminated image is color. It means that it can only be seen clearly under a certain amount of light, and 420 lines refers to the resolution of the camera, which is equivalent to the pixels of the camera.

1/3"Color CCD - Chip.

Minimum illumination. 420 lines - clarity.

At present, the CCD illumination is 633ccd. The normal situation is also there.