Monitor
According to the different application of the following mainly on the surveillance cameras in digital film shooting control and process:
1 use the monitor to control the exposure
The monitor adjusted to the relative standard, and to adjust the state in the shooting, HD monitor has a waveform diagram for exposure control between bright dark details is of great practical significance.
2 automatic aperture control exposure
This is the use of automatic aperture as a meter, the photographer to monitor the camera's dynamic range curve has a particularly clear understanding
3 zebra control exposure
Zebra is usually specified in the signal level 90% - 95% range. The HD surveillance cameras designed the two zebra. A level set at 70% or 700 MV video signal level range of 60% - 65%, basically is the level of video signal corresponding to the yellow skin reflectance value of 23%. The other is 100% zebra, grey region 70% corresponding images, 100% for light.
Digital film exposure light filter lens link. - CCD A/D ADC - shading correction - gain adjustment - white balance: stray light correction details - color matrix - GMA - white inflection point adjustment adjustment of cutting cut film is black. The light meter control exposure. Some digital photographers use meter. General digital camera has the equivalent sensitivity of photographic, for SONYF900, in the 3200K color temperature, shutter 1/48 seconds, 24P mode, the equivalent of 320 degrees. In digital cinema rarely use the meter, because the photometric characteristics of photographic film emulsion hand set. The film is sensitive to blue light, and digital and film is different, it is relatively sensitive to red.