Ok, so your on the right track with that smaller picture inside the bigger video frame. I assume that sample is from the output you created in Handbrake, thats deinterlaced? if so, continue to use that. Also, I assume the timeline you created is 4k based on how small that picture is inside the timeline. To get that picture bigger in the frame using the built in tools of premier, apply the "transform" effect, the one that appears under the title of "distort" in premier. The one highlited here in this pitcure: Once you do that, edit the effect thats been applied to the clip, and you will see a window that looks like there. There is two things you need to change. Change the scale number, which should read as 100% to a bigger number, until it fills the entire video frame. It probably a number around 400%, but you may have try a few different ones. The varible is the "samples", I would change it to "bicubic", it defaults to "bilinear". These changes will leverage premiers built in scale up, and will give you good results. When you do this, and export, the output should be better. If you want to get fancy, you can add a noise remove filter etc, but thats up to you. If you happy with it thus far, you can stop here (most people do). As for Topaz. if you wan to try that, take the footage you deinterlaced from Handbrake, and import it into Topaz, In Topaz, there is a bunch of settings for the type of scalign it does, for now, leave it at the default one. In the middle of the right hand screen, you will see this dialog: In the "settings" dislog, select the output size you want. For your workflow, go ahead and pick 4K, leave the check box for Crop to fill frame off if you want, you and click it and the live preview will show it what it does. In the "Save Result" pick MP4, like the screen shoot, Check off keep Audio, pick your file save location. Pick a compression factor. I always use 5, which makes really big files, so I suggest you try 10 which will be smaller and work just fine. On the top right of that screen shot you will see an icon with an 'eye' inside a camera, you can click on that to preview a few seconds of your settings applied to the footage you imported. If you dont like the result, try different "AI Models" and see which is best for your footage. If you export the video from Topaz, import that back into a new project, put it on a new timeline and those settings should match to the video Topaz created. Then work with the file as normal. Your 15% zoom should look fine on this 4k footage. You also have the option of takign that 4k footage you created, and when you create a new timeline in Premier, make that new timeline a 1080p one. Place the Topaz 4k footage into that time line. It will be bigger than than the time line, so you will need to scale it down 50% to fully fit, but now when you scale it, you will scale the 50% to take 65% and it will retain all the detail it possible can inside that 1080p timeline. The simpliest way, that will likly get you results that are more than acceptable is the using what was described for the premier way, which the transform effect. I know this sounds more complex than maybe it needs to be... apologies for that. But stick with me, once you do this, the next time, you need it it will seem really easy to you.
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