Sony EVI-HD1 Technical Manual - Page 9

Basic Functions White Balance White Balance has the following modes, all of which can be set using VISCA Commands. • Auto White Balance This mode computes the white balance value output using color information from the entire screen. It outputs the proper value using the color temperature radiating from a black subject based on a range of values from 3000 to 7500K. This mode is the default setting. • Indoor 3200 K Base Mode • Outdoor 5800 K Base Mode • One Push WB The One Push White Balance mode is a fixed white balance mode that may be automatically readjusted only at the request of the user (One Push Trigger), assuming that a white subject, in correct lighting conditions and occupying more than 1/2 of the image, is submitted to the camera. One Push White Balance data is lost when the power is turned off. If the power is turned off, reset the One Push White Balance. • Manual WB Manual control of R and B gain, 256 steps each Automatic Exposure Mode The variety of AE functions, which allow video signal to output the optimum image for subjects from low light conditions to bright light conditions, are available. • Full Auto Auto Iris and Gain, Fixed Shutter Speed (59.94/ 29.97/NTSC: 1/60 s, 50/25/PAL: 1/50 s) • Slow shutter limit Lower limit of the slow shutter mode in the Full Auto mode. For the 59.94/29.97/NTSC video format, select the lower limit from among 1/60, 1/30 or 1/15. For the 50/25/PAL video format, select the lower limit from among 1/50, 1/25 or 1/12. • Shutter Priority 1) Variable Shutter Speed, Auto Iris and Gain (1/2 to /1 10,000 s, 21 steps, high speed shutter: 15 steps, slow shutter: 6 steps) • Iris Priority Variable Iris (F1.8 to Close, 18 steps), Auto Gain and Shutter speed. • Manual Variable Shutter, Iris and Gain. • Bright Variable Iris and Gain (Close to F1.8, 18 steps at 0 dB: F1.8, 6 steps from 0 to 18 dB) • Spot light Avoids a situation where the face of the subject is over-illuminated, and becomes whitish. AE - Shutter Priority The shutter speed can be set freely by the user to a total of 21 steps - 15 high speeds and 6 low speeds. When the slow shutter is set, the speed can be 1/30, 1/15, 1/8, or 1/4 s. The picture output is read at a normal rate from the memory. The memory is updated at a low rate from the CCD. AF capability is low. In high speed mode, the shutter speed can be set up to /1 10,000 s. The iris and gain are set automatically, according to the brightness of the subject. Parameter 15 14 13 12 11 10 0F 0E 0D 0C 0B 0A 09 08 07 06 05 04 03 02 01 59.94i [sec] 1/10000 1/6000 1/4000 1/3000 1/2000 1/1500 1/1000 1/725 1/500 1/350 1/250 1/180 1/125 1/100 1/90 1/60 1/30 1/15 1/8 1/4 1/2 50i [sec] 1/10000 1/6000 1/3500 1/2500 1/1750 1/1250 1/1000 1/600 1/425 1/300 1/215 1/150 1/120 1/100 1/75 1/50 1/25 1/12 1/6 1/3 1/2 Note When the low shutter speed is used, Auto Focus and White Balance may not function fully. ... 1) Flicker can be eliminated by setting shutter to: t 1/120 s for PAL models used in countries with a 60 Hz power supply t 1/100 s for NTSC models used in countries with a 50 Hz power supply frequency. frequency. 9