As far as my reduced knowledge about analog film cameras goes, I think that you should go for a 1.3x anamorphics due to the aspect ratio of the gate, since with 2X anamorphics the gate itself would crop a lot on the sides. That said, if you want my two cents, when it comes to choosing the combo camera-glass, always do your own tests and (if you can) try the actual Combination and see how it looks. Don’t let others than your project tell you what’s best. Good luck!!
As far as my reduced knowledge about analog film cameras goes, I think that you should go for a 1.3x anamorphics due to the aspect ratio of the gate, since with 2X anamorphics the gate itself would crop a lot on the sides. That said, if you want my two cents, when it comes to choosing the combo camera-glass, always do your own tests and (if you can) try the actual Combination and see how it looks. Don’t let others than your project tell you what’s best. Good luck!!