At  Photokina 2016, Panasonic released its high-end 1"-type superzoom, known  as the DMC-FZ2500. It retains the same sensor as the excellent FZ1000 that came  before it, while gaining a totally new lens, larger EVF, easy-to-adjust ND  filter and even more customizable buttons. Recording formats of MP4 (LPCM) and  MOV, and bit rates extended up to 200 Mbps (ALL-Intra) or 100 Mbps.
         
        The 4K video captured by Panasonic Lumix DMC-FZ2500  is a kind of non-standard format which is hardly supported by Final Cut Pro  (FCP X, FCP 7, FCP 6). In order to import Lumix FZ2500 4K MP4 and MOV footage  into FCP for smoothly editing, we need to rewrap or convert original format to FCP  native supported codec, the most compatible video codec for Apple Final Cut Pro  to afford with the help of a professional third party program.
If you check the detail information on  Apple official product page, you will find that Final Cut Pro ?X can only support limited video codecs and  formats, and the best native supported format for Final Cut Pro X is Apple  ProRes codec, with this codec you will be able to edit the Lumix FZ2500 footages  in Final Cut Pro X smoothly and without rendering.
To perform the task, the easiest way is to  use Acrok  Video Converter Ultimate for Mac which can help you to transcode Lumix  FZ2500 clips footage to Apple ProRes codec files - ensuring maximum editing  quality and efficiency when working with Final Cut Pro. Besides, this technical  third converter offers various common video codec for editing tools, like Apple  InterMediate Codec(AIC) for iMovie, DNxHD for Avid, MPEG  for Premiere Pro and Sony Vegas Pro, .etc Read on to learn how to convert Panasonic  Lumix FZ2500 4K MP4 MOV to ProRes MOV on Mac (macOS Sierra, OS X El Capitan,  etc.). 
Free download Acrok  Video Converter Ultimate ( Mac Version | Windows Version)
How to convert Panasoni Lumix FZ2500 4K video to ProRes with no hassle?
Here  the screenshots of Acrok HD Video Converter for Mac are used to show you how to  finish the conversion quickly. The way to convert Lumix FZ2500 files to other  popular format on Windows is almost the same. Just download the right version  and follow the intuitive interface to get the conversion done in clicks!
        
1
Add Videos
Download, install and launch the 4K video  conversion program. Then click Add Files to load the Lumix FZ2500 4K MP4 or MOV  video files you want to convert.

2
Choose output format
Next, choose ProRes MOV as the output video  format: click Format on the right and go to Final Cut Pro > Apple ProRes 422  MOV or Apple ProRes 4444 MOV as the output video format.
 
Tip: After your footafe have finished  loading, you can use this Lumix FZ2500 Video Converter to edit, combine and  crop your recordings. You can access all available editing functions by either  clicking Edit or Trim in the menu bar.

3
Start the conversion
When all the settings are done, click the  Convert button on the lower right to start converting the added files and wait  for the conversion to be done. That's it! When the conversion completes, click  Open Folder to get the converted Apple ProRes videos. Done! Now you can import  and edit Panasonic Lumix FZ2500 video in FCP X freely.