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Hi @djh, that would be a pretty easy adjustment to make in Lightroom or Photoshop with a gradient filter. No problem at all! It would do the same thing that a glass gradient filter would. :)

Thanks Derekkind, I bought some filters a few years back and decided its far too much messing about lol next time I manage to get a job I will treat myself to photoshop & a course to fast track getting the hang of it:-)