5D Mark IV is the newest DSLR from Canon, which is designed to appeal to the same wide range of enthusiasts and professionals. Perhaps the most important feature of the Canon 5D Mark IV is its ability to shoot 4K video (in .MP4, .MOV format) internally. While, there are a few issues when editing the gorgeous-looking Canon 5D Mark IV 4K recordings in NLE like Adobe Premiere Pro, FCP, Avid Media Composer, etc., and sharing on devices like iPad, iPhone, TV, etc. or online websites like YouTube, Facebook, Vimeo, etc. A better solution to work with Canon 5D Mark IV 4K videos is to transcode Canon 5D Mark IV 4K video at first. Here I would like to share some skills for you.
Since H.264 is a delivery codec rather than editing code, you need to transcode H.264 footage from Canon 5D Mark IV to an editable format for importing to non-linear editors directly. And due to the codec incompatibility and other file size/resolution limitation, you need to downscale Canon 5D Mark IV 4K to 1080P which would be the best settings. It will save you both time and trouble, and all you need is to drag the result videos for prompt editing, playing or sharing. To get the job done, you need a Mac Canon DSLR Video Converter hooked to your Mac.
If you looking for a solution for this problem likewise, I recommend you try Dimo Video Converter Ultimate for Mac. It is surely in the support of compressing Canon 5D Mark IV 4K UHD videos to 1080p for your to deal with faultlessly. Plus, this 4K video converter enables you to transcode 4K videos to any format MOV, WMV, FLV, MPG, AVI, MKV... for playing or sharing.
What's more, it also provides hundreds of output format presets for 4K videos, such as Apple ProRes 422, Apple ProRes 4444 for Final Cut Pro, MPEG-2 for Premiere Pro, DNxHD for Avid Media Composer, etc to meet your needs. Overall, this program is a completely professional 4K HD video converter, player and editor. For Windows user, Dimo Video Converter Ultimate is the alternative choice that allows you to convert Canon 5D Mark IV 4K to 1080p on Windows at high speed. Here I will throw a quick tutorial up on how to transcode Canon 5D Mark IV video for editing and sharing flawlessly on Mac (OS High Sierra).
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Launch the 5K Mark IV 4K to 1080p Converter; click "Add File" and load your 4K files from Canon 5D Mark IV copied on your Mac hard drive.
Click the "Select Format" drop down list to select MOV, MPG, AVI, etc format from "Format > Video" as you want. Since this video converter also provides optimal profiles for kinds of editing programs and media devices, you can also select a proper format that best meets your needs.
Click "Settings" button; you can adjust video and audio settings, including codec, aspect ratio, bit rate, frame rate, sample rate, and audio channel. To down-convert ultra HD 4K to 1080p, do remember adjusting video size to 1920*1080. That is the exact 1080p.
Hit "Start" button to let the Canon 5D Mark IV 4K to 1080p conversion on Mac (OS High Sierra) begin. When the conversion finished, check the generated 1080p video, you will certainly be satisfied with its final video quality. It would be much easier for you to edit, playback and share.