Removing Vignetting from Timelapse

[Knight of Clear Skies]

I made this 2-hour timelapse of the XRT-C radio telescope on my last trip to Cornwall, using my Samyang 14mm f2.8 lens and 6D.

With the full frame sensor the vignetting is quite extreme so I'd like to batch process in some lens corrections. (Looking at it on a better screen it's also way too green, so I'll change the colour balance too.) I've been searching online for how to do this without any success, does anyone have any suggestions please? I stopped my subscription of Photoshop creative cloud as I wasn't getting enough use out of it to justify the cost. Are there any alternative programs to Photoshop/Lightroom that will accept a Samyang lens profile? The Canon DPP software only seems to have profiles for Canon lenses, and I can't see how to do this with Photoshop CS3.

[PeterCPC]

In Affinity Photo there are adjustments that can be used for RAW images. See screenshot. No lens profiles as such.

Peter