37Variable Frame Rate (VFR) RecordingChapter 3 Recording and PlaybackThis camera takes full advantage of P2 cardcharacteristics by providing frame skipping(undercranking) recording and high-speed(overcranking) recording without the use of a framerate converter. (The camera must be set to 30PN,25PN or 24PN to use these functions.) Since thecamera records only the effective frames (nativerecording), recording time is 2 to 2.5 times longer thanin the 24P, 30P and 60P modes (25P or 50P at 50 Hz)(standard recording). Like VARICAM (the AJ-HDC27series), it also provides a recording format that canaccommodate the frame rate conversion required fornonlinear editing. (The camera must be set to 30P,25P or 24P).Variable frame rate (VFR) recording is available only inthe 720P mode.24PN mode:The camera recorder shoots in the 24 fps native mode.The video signals delivering images at a rate of 24 fpsare recorded in 24 frames. The signals are recordedonly in the effective frames so recording is possible for2.5 times as long.1 1 1 2 2 3 3 3 4 411 2 3 42 3 4effective frameCamera Recorder24P24PN• Before Variable Frame Rate (VFR) shooting, youmust set the recording frame rate and the recordingformat.• You cannot change the frame rates while recording.• You can select any of 11 recording frame ratesranging from 12 frames per second (fps) to 60 fps.See [Video and Recording Formats] (page 45).• There may be slight discrepancies between therecording frame rate displayed and the frame rate atwhich the images are actually recorded. Refer to thetable below.59.94 Hz 50 HzRecordingframe ratedisplayedFrame rateat whichimages areactuallyrecordedRecordingframe ratedisplayedFrame rateat whichimages areactuallyrecorded60 59.94 50 50.0048 48.17 48 48.0836 35.68 37 36.7532 32.11 32 32.1430 29.97 30 29.7626 26.44 27 27.1724 23.98 25 25.0022 22.48 23 23.1520 19.55 20 19.7418 17.98 18 17.8612 12.26 12 12.50Native recording1 Select the 720P/30PN or 720P/24PN(720P/25PN at 50 Hz) recordingformat in the REC FORMAT item in theRECORDING SETUP screen.For details on menu operation, refer to [Usingthe menus] (page 116).2 Select the appropriate scene file usingthe SCENE FILE dial.• If necessary, before doing this, perform thecamera settings from the setting menu, andregister the scene file.See [Saving scene files and other settings onSD memory cards] (page 82).3 Using the OPERATION TYPE functionon the SCENE FILE screen, select FILMCAM, and set the desired recordingframe rate using the FRAME RATEfunction.For details on menu operation, refer to [Usingthe menus] (page 116).Variable Frame Rate (VFR) Recording
