Didina

Hello, dear friends! I have bought Kowa Prominar 16-A and inspired by anamorphic of pictures, low contrast and highlights ( I am using Prominar 16-A with lenses Olympus Zuiko 50/ 1.4 ,Zuiko 50/ 1.2 first versions without multiflexion ) I am going to buy a Bolex Möller 16/32/1.5x but it's much more expensive than Prominar , Do someone has both of these attachments and can compare them? Why Bolex Möller 16/32/1.5x is better than Prominar 16-A ?