TOPIC:

Create Depth-of-Field Effect by Blurring Backgrounds
In this tutorial, a response to a question on a previous tutorial, we look at how to blur out to blur out a background in Final Cut Pro X. If the setup and execution is smart then you can give your video a cool depth-of-field effect similar to what can be achieved in camera with the right lens.
This is also useful if you need to create space for overlaid text to really pop.

… it's really time for me to replace my trusty 2012 MacMini!! All these new, fancy auto-mask, auto-track effects <sigh>. You make me jealous with all this stuff, Ben!

At least, 5y ago (!), I made this plug-in:
fcp.co/forum/film-looks-effects/27590-sh...o-add-dof-to-a-frame

I definitely try to keep my Macs running for as long as possible. That plugin looks awesome... I'm going to give it a test drive at some point in the future.

Karsten wrote:

… it's really time for me to replace my trusty 2012 MacMini!!

Don't be so hasty there, pal. There's still two G5s, five MacPro 4.1 8 core (2009) maxed out and two Mini 3.1 (2009) connected & chugging away over here. For configuration and storage (and running of earlier edits) those towers can't be beat but all fancified editing must be used on newer machinery.

(No telling what mysteries have been left on the G3 & G4 towers that have been offline for who knows when. Time to play Howard Carter and go explore that enigma.)

// ADDENDUM //
… should spend more time reading my in-box… the masters from motionvfx offer a much more elaborated and versatile plug-in, FOR FREE:

Much rather tinker with yours than something else that requires watching a 17 minute in order to get things plugged into your system after downloading a dedicated app that needs net connectivity for use & scours your system to see what else is on your computer. No. Thank. You.