How to downscale video from 4K to 1080p without losing quality

[Maja338372519mlg]

 Hi.

I have question regarding video export. I have dron shots filmed in 4K. I import them in premiere pro and downsize the quality to 1080p in sequence settings. Also I edit these shots with fast forward tehnique (time interpolation - frame blending) and export the video with recommended settings in the attachemend below, but after exporting video is blurry.

Can someone advice me which setting I need to use that my video will be in the best quality as it could be?

Thank youu 🙂

[Richard M Knight]

Your source sequence seems to have a fractional framerate, is your drone footage variable frame rate?

[Peru Bob]

Use Set to frame size instead of Scale to frame size

Also, increase the bit rate on export.

[Warren Heaton]

Make sure that Maximum Render Quality is enabled in the Video options.

What is the file format and the bit rate of the 4k source footage in the 4k Timeline?  Professinonally, source footage would not be lower than 35 mbits per second; however, and edtior may get okay results from 12 to 13 mbits per second source.  

When source footage bitrates fall lower than that, they tend not to make good source footage as they suffer obvious compression geneation loss when being exported.

Formats like ProRes and DNx are specifically designed to hold up to the inherent compression passes of video editing.

[Maja338372519mlg]

The original video has 25 fps. So I'm I able to get good shot from this videos or?