Lou Dina wrote:
As far as I know, LR can only open RAW files into Photoshop using sRGB, Adobe RGB or ProPhoto RGB.
Is there a way to add different RGB working spaces to that short list so the file opens in a different working space?
No, it would be useful if you could select any working space like you can in Export. But if you wanted to use BetaRGB and Edit in, you could select ProPhoto RGB, then in Photoshop, set your Color Settings to Convert to Working RGB, specify BetaRGB and turn OFF the profile mismatch warnings. Photoshop would convert as it opens the file to BetaRGB from ProPhoto which is basically what Export is doing (there is a difference in the gamma).
