JVC has introduced the GY-LS300 4KCAM Handheld S35mm camcorder, a relatively compact Micro Four Thirds model featuring 4K Ultra HD-resolution recording. JVC has incorporated a JVCKENWOOD AltaSens 4K CMOS Super 35mm sensor alongside the MFT lens mount, promising full native angle of view for different lens standards including Super 35, MFT, and Super 16 via its proprietary Variable Scan Mapping tech. The JVC GY-LS300 is able to record 4:2:2 HD Signals at up to 60P at 50 Mb/s and allowing to capture two different formats, MOV and AVCHD, simultaneously to its dual SDHC/SDXC media card slots using optional media cards.

If you recorded videos via JVC GY-LS300, and have the need to edit JVC GY-LS300 AVCHD/MOV 4K videos with iMovie/Final Cut Express. You will encounter many problems while importing JVC 4K video to FCE/iMovie, because the iMovie or Final Cut Express dosen’t supported MPEG-4 AVC/H.264 well. To import and edit JVC GY-LS300 4K video files in FCE/iMovie smoothly, you should transcode AVCHD/MOV videos to FCE/iMovie native format. Here we strongly recommend UFUWare HD Video Converter, which can help you convert JVC GY-LS300 AVCHD/MOV to FCE/iMovie compatible format. Follow the brief guide below.

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Step 1: Add JVC GY-LS300 AVCHD/MOV 4K videos

Launch the top HD Video Converter for Mac as JVC GY-LS300 Video Converter for Mac. Click “Add File” to load JVC GY-LS300 AVCHD/MOV 4K video files.

JVC GY-LS300 AVCHD/MOV to iMovie/FCE Converter

Step 2: Select AIC MOV as output format

Click on “Profile” option to get the drop-down menu, and select “iMovie and Final Cut Express > Apple Intermediate Codec(AIC) (*.mov)” as output format,it’s natvie codec for iMovie or Final Cut Express editing.


Step 3: Adjust output file video and audio settings (optional)

If necessary, you can click “Settings” button and go to “Profiles Settings” panel to modify video and audio settings like video encoder, resolution, video bit rate, frame rate, aspect ratio, audio encoder, sample rate, audio bit rate, and audio channels. If not, just skip this step.

Custom video and audio parameters

Step 4: Convert JVC AVCHD/MOV to AIC for FCE/iMovie

When settings done, press “Convert” button to convert JVC GY-LS300 AVCHD/MOV 4K videos to AIC MOV for iMovie/FCE on Mac. The professional converter will do the conversion at fast speed.

Once the conversion process is complete, you can click “Open Folder” button to get the generated AIC MOV files. Now, you can import and edit JVC GY-LS300 AVCHD/MOV 4K video files in Final Cut Express 4 or iMovie 8/9/11 on Mac freely and smoothly.