Assessments - 3, GPA: 4.3
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.Color temperature and white balance adjustment (reference) When carbon is burnt, it develops various colors of light depending on the temperature. Natural light can be specified by color temperature reflecting to the color developed when carbon is burnt. The light of 3,200K (K=Kelvin, –273°C equals to absolute zero temperature 0K) represents the same value (color) as what develops when carbon is burnt at 3,200K (2,927°C). The relationship between the color temperature of the light source and weather condition is indicated in the right figure. Let’s study the difference of shooting an indoor object from shooting one outdoors. Studios are usually lighted with incandescent lamps and the color temperature of a white object in a studio is around 3,000K. The color temperature of a white object outdoors is around 6,500K. The former may look a little yellowish while the latter appears somewhat bluish when they are shot by a camera. However, the human eye does not recognize color differences among these objects even under different ambient lighting conditions, because of their adaptability to light. The video camera reproduces color differences with high fidelity and the color of an object somewhat different from what appears to the human eye. Therefore, there is a need to adjust the white balance in order to correct differences between color temperatures. NOTE . Color temperature outdoors may vary depending on weather conditions. Blue sky Partly cloudy Fluorescent lamp Cloudy AWC Fine Tangsten lamp Halogen lamp Rainy Candle - 18 (E) - ENGLISH .Black balance adjustment . Adjust it with the lens closed. When the motor drive lens is controlled from the camera, adjusting the black balance causes the lens to be automatically closed. .Gen-lock adjustment When multiple cameras are used or the camera is combined with other equipment, it is necessary to adjust the phase for phase matching by external synchronization. . Horizontal phase adjustment Observe the waveforms of externally synchronizing signal input (black burst signal) and video signal output by a two-phenomenon oscilloscope, and make the horizontal phase according to the camera menu. Adjustment with GEN-LOCK of SETTING menu When HD synchronizing signals are input: . Roughly adjust the synchronizing signal input and video signal output phases by H PHASE-COARSE. . Finely adjust the synchronizing signal input and video signal output phases by H PHASE-FINE. When SD synchronizing signals are input: . Roughly adjust the synchronizing signal input and video signal output phases by SD-HD PHASE-COARSE. . Finely adjust the synchronizing signal input and video signal output phases by SD-HD PHASE-FINE. If the adjustment performed using SD-HD PHASE is not satisfactory, use H PHASE-COARSE/FINE. How to adjust .... GEN-LOCK .... GEN-LOCK INPUT :BNC H PHASE-COARSE :+00 H PHASE-FINE :+000 ........GEN-LOCK .... GEN-LOCK INPUT :BNC H PHASE-COARSE :+00 H PHASE-FINE :+000 SD HD PHASE CRS :+0 SD HD PHASE FINE :+00 - 19 (E) - Setting of menu items .How to display the menus Two methods are used to display the menus. . Using AK-HC1500G multi purpose camera to display the menus: . Hold down the MENU switch on the rear panel of the main unit for at least 3 seconds to display the TOP menu. . Use the UP/DOWN switch to move the cursor to the target item, and press the ENTER switch to move to a menu at a lower hierarchical level. . Using AK-HRP150G camera controller . Press the MENU ON/OFF switch on the AK-HRP150G so that its lamp lights. The TOP menu now appears. . Move the cursor to the target item, and press the MENU switch to move to a menu at a lower hierarchical level. .TOP menu When the VIDEO MENU is selected: When the FILM MENU is selected: USER MENU 1.MAINTENANCE 2.SETTING 3.CAMERA ID 4.FILE OPERATION USER MENU (FILM MENU) 1.MAINTENANCE 2.SETTING 3.CAMERA ID 4.FILE OPERATION 5.TIME CODE - 20 (E) - ENGLISH Setting of menu items DETECTION [READY, ACTIVE] For automatically correcting the black shading. CORRECT(DIG) [OFF, ON] For ON/OFF control of the detection correction. . MAINTENANCE menu MAINTENANCE 1.BLACK SHADING 2.PEDESTAL,GAMMA 3.FLARE 4.KNEE,WHITE CLIP 5.R/B GAIN 6.DETAIL 7.SKIN TONE DETAIL 8.GAIN,AUTO IRIS 9.SUPER GAIN 10.FRAME MODE 11.MATRIX 12.COLOR CORRECTION .. .. ........BLACK SHADING .... DETECTION CORRECT(DIG) :ON [1] BLACK SHADING - 21 (E) - Setting of menu items . MAINTENANCE menu ..........PEDESTAL,GAMMA(1/2) .... M PEDESTAL :+000 R PEDESTAL :+000 B PEDESTAL :+000 M GAMMA :0.45 R GAMMA :+00 B GAMMA :+00 M BLACK GAMMA :+00 R BLACK GAMMA :+00 B BLACK GAMMA :+00 GAMMA :ON BLACK GAMMA :ON M PEDESTAL [–200 to +200] For adjusting the black level. R PEDESTAL [–100 to +100] For correcting the red in relation to the master pedestal. B PEDESTAL [–100 to +100] For correcting the blue in relation to the master pedestal. When the AK-HRP150G has been connected, M PEDESTAL, R PEDESTAL and B PEDESTAL operations cannot be performed using the menu. M GAMMA [0.35 to 0.75 (DRS OFF), –10 t...