G Advanced Pulldown Converter
The G Advanced Pulldown Converter filter is designed for situations where you have shot in 24pAdvanced on a Panasonic DVX100 or Canon XL2 by mistake. The 24pA footage should really have it's pulldown removed automatically by FCP and be edited on a 23.98fps timeline for best quality. 24pNormal is designed to be edited on a normal NTSC 29.97fps timeline. This filter will take 24pA footage that has not had it's pulldown removed and convert it to 24pNormal. The filter is designed to be used on a normal 29.97fps timeline. Filters in FCP cannot access the meta-information which tells FCP where the pulldown frames are in advanced footage, so there is a small manual step described below to help you find the correct point in the pulldown sequence for the plugin to work correctly.
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1 Place your 24pA footage or clip that does not have it's pulldown removed onto a normal NTSC 29.97fps timeline. Do not apply the filter yet.
2 Set the canvas in Final Cut Pro to 100% and turn off display as square pixels:
3 Now we can correctly see the interlaced nature of the video and determine whether we're on a split frame or a whole frame. A Split frame will show interlaced tearing - a sort of comb effect. Park the play head on a split frame. It doesn't matter which. In 24pAdvanced there is one split frame followed by four whole frames. In 24pNormal there are two split frames followed by three whole frames.
4 Apply the G Advanced Pulldown Converter filter to the clip in the timeline.
5 Advanced the play head one frame.
6 Now adjust the "Pulldown Pattern Shift" control until the current frame you are on is a split frame. This method of operation is a fairly foolproof method of letting the G Advanced Pulldown Converter filter know exactly where we are in the five frame pulldown sequence, so that it can accurately convert 24pA to 24pN.
7 Render the clip to see it converted from 24pA to 24pN. |