UPDATED
I have shot a short video in 2720x1530 @ 30p and have experimented with creating a letterbox as an overlay in iMovie in post in order to create a cinematic look to the video. The letterbox overlay was also done in 2720x1530, but I find that during the video the relative size in height of the 'black bars' reduces by some 50%. I was under the impression that size of letterbox could comfortably be of same format as the original video size. With the above experience I now somehow think you can 'only' go down in size of letterbox (like down to 1920x1080 for the above) compared to the original if you want to maintain relative size. Can anyone offer some insights?
I have shot a short video in 2720x1530 @ 30p and have experimented with creating a letterbox as an overlay in iMovie in post in order to create a cinematic look to the video. The letterbox overlay was also done in 2720x1530, but I find that during the video the relative size in height of the 'black bars' reduces by some 50%. I was under the impression that size of letterbox could comfortably be of same format as the original video size. With the above experience I now somehow think you can 'only' go down in size of letterbox (like down to 1920x1080 for the above) compared to the original if you want to maintain relative size. Can anyone offer some insights?
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