104 Adjustments and Settings for Recording : Chromatic Aberration Compensation (CAC)CAC is a function that automatically corrects registration errors mainly caused by slight chromatic aberration, which cannot becorrected with lenses, and minimizes color weepage on the images.Chromatic aberration means magnification ratio chromaticaberration. Magnification ratio chromatic aberration iscaused by differences in the in red (R), green (G), and blue(B) refractive indexes of a lens. The lens itself correctschromatic aberration but the astigmatism remains in thesurrounding area in particular. The zooming ratio, iris, andfocal distance involves complicated chromatic aberrationphenomena in a zoom lens. Images have registration errors.To correct the chromatic aberration, record the chromaticaberration characteristics of the lens for the zooming ratio,iris, and focal distance in the main unit of the camera-recorder and connect a lens suitable for thesecharacteristics. Then perform the correction in accordancewith the zooming ratio, iris, and focus distance of the lens.The CAC data for the following four kinds of lenses arestored in the unit at the time of shipment from the factory.NoteVisit our Web site at the address given below for details onadditions or changes to lenses supporting CAC.http://pro-av.panasonic.net/For the four lenses listed on the left1 Install the lens on the unit and connect thelens connector.2 Open the CAC ADJ MENU on theMAINTENANCE MENU screen.3 Turn “ON” the CAC CONTROL.If the lens product number recorded on the unitcoincides with the product number of the connectedlens, the CAC data stored in the unit are read outautomatically.1 When the MENU is not displayed on the VFscreen, pull the MARKER SEL, MODE CHK /MENU CANCEL switch.If letters of the CAC are indicated at the left top of theviewfinder screen, the CAC is operating properly. If theletters of CAC are not indicated, the CAC is notoperating.2 Turn “On” the CAC item.z The menu item CAC is found in the INDICATOR> screen on the VF page.z The letters of CAC are indicated in the left top of theviewfinder screen.Chromatic Aberration Compensation (CAC)What is the chromatic aberration?Chromatic aberration compensation functionIndication on the unit Supporting lens model No.HA16X 6.3BERM-M58 HA16x 6.3BERM-M58HA22X 7.8BERM-M58 HA22x 7.8BERM-M58HJ17EX 7.6B IASE HJ17ex 7.6B IASEHJ22EX 7.6B IASE HJ22ex 7.6B IASEBGRCAC operationConfirmation of the CAC operation status< CAC ADJ ># CAC CONTROL :ONCAC FILE DELETECAC FILE NO. :01TITLE SCROLL :0101:HA22X7.8BERM-M5802:HA16X6.3BERM-M5803:HJ17EX7.6B IASE04:HJ22EX7.6B IASE05:NO FILE06:NO FILE07:NO FILE08:NO FILE60I AVC-I 1001080-59.9CAC3.2K1A P 0dB
