Well, it is a little bit of a mind fuck. A photographers mind fuck. All the technical "solutions" or various ways how to achieve something. Sometimes more for the experiment's sake, rather then focusing on filling photography with interesting content.

Oh dear... oh well.

I have to leave the idea of wanting to adapt Mamiya RZ67 lenses to a digital camera. I think it is a (this far) rather lost case for the time being. It doesn't add anything, I can't already do.

And when it comes to adapting Pentax 67 lenses in order to simulate a 150 MP 7x7 cm sensor... well, I do it because it is fun to experiment.

Can't go wrong

However... I recommend people to focus on real Fujifilm GF lenses, and whether it is the GFX 50 series, or the 100 MP series - you get plenty, plenty of resolution and fine details. Without having to use any rotating adapters, other adapters or quirky bellow combined shift adapters.