/t5/premiere-pro-discussions/how-do-i-zoom-into-an-area-in-one-clip-and-zoom-out-in-another-while-controlling-the-magnifiaction/td-p/8808766Feb 05, 2017
Feb 05, 2017
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I have been trying to use cross zoom in various configurations to achieving what I want as follows:
ending at cut or starting at cut or both
also using the sliders and position targets
I can control the magnification of the zoom in for the first clip using the cross zoom ending at the cut. I tried to zoom out in the following clip to start at the same magnification as the end of the preceding clip but I found I have not been able to use two cross zooms ending and starting at the same point.
I may be able to provide a useful description of the two clips as follows:
The first clip shows a swimming pool from one side looking at a row of distant lounge chairs on the opposite side. The chairs are I/3rd from the top of the frame and approximately 1/11th the height of the frame. The second following clip shows the lounge chairs up close, approximately 5 times the size and at 1/3rd of the frame on the bottom left and extending to the right to a seated person about half way up the frame. As you may only need an ending and a beginning frame since here is no video zooming involved, I can convert to jpeg before sending if you prefer.
I enjoy a challenge and need the experience. Because there is a significant difference in height and position of the chairs in the two frames, I probably should abandon the zoom and use a cross dissolve.
Please refer to my reply to Ann and provide more detail for how I can use the Scale parameter to do what I was intending with the Cross Zoom or otherwise.
But first be aware...a Zoom of that amount will seriously degrade the images!!!
You need Scale and Position Key Frames to align the images.
Select the 1st Clip
Effects Control>Motion> Scale & Position >"zoom to size andadkust position ...Key Frames ...over a duration of your choice at tail of clip.
Same again at head of 2nd (incoming) clip after you have aligned (scaled/positioned) the images as you wish.
Butt the shots with a hard cut effect for a trombone transition effect ....or over lap the shots more or less to achieve a softened transition with a Cross Dissolve or Opacity Key frames for max control.
Excellent for key frame by frame editing. It is a pity that there is no separate zoom in and zoom out that may have made the job easier. The degraded zoom in for the first clip was quite noticeable. I might be able to improve some of this with other Effects including the Detail-preserving Upscale in AE. With the zoom out for the following clip, the downsizing to start and expand should not be a problem with degradation using Scale and Position.
I had a thought to edit the 2 clips with cross zoom separately then after Export to remove the last frames of the zoom in and beginning frames of the zoom out to control the zooming size so as to match the chair sizes for both clips in the cross over. It may not be a perfect position match but more acceptable than enormous ins and outs while minimizing the zoom in degradation.
Thank you for your suggestion. After careful consideration for what would have provided a result with the time to edit frame by frame, I tried the idea I had to use the 2 clips with the cross zoom, export, then import and further edit.
Selecting a suitable zoom length with custom positioning and the zoom tools I was able to reasonably match the size and position of the chairs zoomed in and out. The position tool off frame in the Zoom tool display helped. After Export and saving, I imported back to P.Pro. This was followed by cutting the zoom in at a position that matched a point in the following frame where the chair sizes roughly matched in size and position. I cut the zoom out in the following frame where not only did the chairs sizes and position match I also found the zoom had stopped. I softened the sudden jump using a fade in and out.
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