Made a new tutorial using Davinci Resolve to de-Squeeze 1.15 anamorphic from the Freewell wide angle lens.  This one is perfect and easy.  You can even make presets for 4K and 1080.  I wasn't  happy with my original tutorial and will soon delete it.  I originally used the transform tool to adjust the squeeze.  And it works fine, however, if you do any zooming, it doesn't maintain a linear aspect ratio even though x and y are locked.   

Hello there JohnAven. Good day and thank you for posting this interning video you have created. Great work and have a nice day. .

Thanks for making!

Do you use this lens often?

Yes, I actually use it more than I would have expected.  I have the kit , which includes the ND filters.  Filters are great, but difficult to handle.  It would have been nice if they made a special pair of tweezers for handling the filters.

Great tutorial. Thank you for your time and effort!