Recently a question came up about coordinating the times for the application of pan and zoom and slow/fast motion effects to the same video. There was no bug found in matching times seen in Time Remapping, Pan and Zoom Tool, or keyframing of Motion Scale for zoom and Motion Position for pan. What is seen is based on the principles of slow motion (frames are added) and fast motion (frames are subtracted) and what happens when pan and zoom is added to a video clip from Motion (no frames added) or Pan and Zoom Tool (frames added).
ISSUE
A Premiere Elements user ran into problems coordinating the timecode readings found going between workspaces of Expert, Pan and Zoom Tool, and Time Remapping in establishing a video effect where first and last sections of the video had fast motion, the middle section had slow motion and pan and zoom. What to do?
SOLUTION
The ISSUE presented was first addressed in the Expert workspace by keyframing of the Motion Scale for zoom for the middle section. Then the video was taken into the Time Remapping workspace where the slow and fast motion effects were applied. Although the Pan and Zoom Tool could be used to do the zoom, it was found easier to use the keyframing of the Motion Scale property for a video source.
Considerations and how to for interpreting timecodes between the workflows involved in this situation will be demonstrated by the example offered in the HOW TO to follow.
HOW TO
STEP 1. Strategy Planning
Expert workspace of Premiere Elements 13/13.1
Keyframing Motion Scale for Zoom and Motion Position for Pan
(Applied Effects/Tab/Applied Effects Palette/Motion Panel expanded and its Scale and Position properties)
Given a 40 second video clip on Video Track 1. This clip is a procession of children moving from left to right down a church aisle. The child of interest is seen in the middle of the screen in Edit area monitor at 17.533 seconds which is represented in Timeline timecode as 00;00;17;16. The goal is
(a) fast motion 2x and Scale 100% from beginning of the clip to just before the child begins to appear on screen
(b) 1/4x slow motion while the child is on screen and zoomed in
(c) fast motion 2x and Scale 100% immediately after the child moves out of sight
It is in this STEP 1 where the timing is defined which will impact the pan and zoom as well as the fast and slow motion effects in Time Remapping. In this example, it was decided from inspection of the Timeline content in Expert workspace and project goals that
(a) was going to be from 00;00;00;00 to 00;00;16;24
(b) was going to be from 00;00;16;25 to 00;00;18;02
(c) was going to be from 00;00;18;03 to 00;00;40;00
STEP 2. Creating The Pan* and Zoom Keyframing
In the Edit area with the Timeline 40 seconds video clip selected, place the Timeline Indicator at 00;00;16;24. Refer to 1 and 2 in Figure 1.
With Timeline clip selected, go to Motion Panel expanded, click on Toggle Animation icon. Refer to Figure 1.
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| Figure 1. Pan And Zoom Using Keyframing Of Motion Scale For Zoom (In Expert Workspace Premiere Elements 13/13.1). To Get This Split Screen View Of the Motion Panel Expanded, Click On The "Show/Hide Keyframe Controls" Icon. In This Screenshot,"Toggle Animation" Has Not Been Activated Yet By Clicking On Its Icon. |
Tap the right arrow key to move the Timeline Indicator to the right to a spot where the child just starts to be seen. Then move the Motion Scale slider from 100% to 140%.
Tap the right arrow key to move the Timeline Indicator to the right to a spot further along but not yet at where the child is in the middle of the frame. Move the Motion Scale slider to 183%
Tap the right arrow key to move the Timeline Indicator to the right to a spot where the child is in the middle of the frame. Move the Motion Scale slider to 214%.
Tap the right arrow key to move the Timeline Indicator to the right to where the child just goes out of sight. Move the Motion Scale slider to 100%.
STEP 3. Time Remapping Slow And Fast Motion Effects To Step 2 Panned and Zoomed Video
Take the STEP 2 panned and zoomed clip into the Time Remapping workspace. Place the Time Zones as follows, but DO NOT apply the dots for the settings for fast and slow motion yet. At this point, the Time Zones will be represented as
(a) Time Zone 1. 00;00;00;00 to 00;00;16;24
(b) Time Zone 2. 00;00;16;25 to 00;00;18;02
(c) Time Zone 3. 00;00;18;03 to 00;00;40;00
Now apply the 2x fast motion to (a) and (c) and the 1/4x slow motion to (b).
Record the new timecode readings that resulted because of the addition and subtraction of frames that took place when you added the slow and fast motion effects. The addition and subtraction of frames are not bugs but the basis for slow and fast motion effects wherever. The new readings will be (best possible to seconds level in the timecode hours;minutes; seconds;frames)
(a) Time Zone 1. 00;00;00;00 to 00;00;08;11
(b) Time Zone 2. 00;00;08;14 to 00;00;13;10
(c) Time Zone 3. 00;00;13;16 to 00;00;24;15
The child whose who was seen at mid frame originally at 00;00;17;16 is now seen mid frame at 00;00;11;07. And, these new timecode readings in the Time Remapping workspace will be the same when the Time Remapped clip is back in the Expert workspace. Keeping track of these timecode changes impacts instances when editing of the effect produced is going to be considered.
COMMENTARY**
The Pan and Zoom Tool can also be used to set the zoom for STEP 2. But use of the Pan and Zoom Tool requires special considerations for applying pan and zoom effect to video. Refer to
http://atr935.blogspot.com/2014/08/pe12121-pan-and-zoom-tool-and-video-file.html
It was found easier to use the keyframing of the Motion Scale and Motion Position properties for this purpose.
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*Although Pan is used in description "Pan and Zoom", only Zoom was used in this example.
**Miscellaneous
When applying fast and slow motion using Time Remapping, the image that is shown in the monitor of the special Time Remapping workspace, the feature's monitor displays the Timeline content with prior edits that were done in the Expert workspace. In contrast, when you are applying pan and zoom with the Pan and Zoom Tool, the Pan and Zoom workspace monitor refers back to the unedited original Timeline import.
Work In Progress
ATR
