Question about lens aperture conversion

[Samir Patel]

So I was thinking. And this is a theoretical question as I am still learning about still lenses. Knowing that the CP.2s are essentially the same glass as ZE/ZF series but with just the cinema housing and more aperture blades yada yada. I was wondering if there have ever been 3rd party companies who have modified existing stills lenses (vintage stuff like Leica-R etc.) and replaced just the aperture blades with custom blades to make rounder aperture etc. Sort of a mix of the old glass but with more modern advances for bokeh etc. Pros/Cons? Can anyone chime in or does this sound like a stupid question?

I know some older vintage glass has a unique look but when you stop down to prime aperture you get a more hexagonal shape opening with hexagonal bokeh etc. This is why I ask.

Also has anyone experimented with a 'Franken-Lens' DIY type of project?

 

[Terry VerHaar]

I am not an expert but I am going to guess that this would be a very expensive modification; so much so that it would probably make more sense to buy the more expensive lens.

 

[Samir Patel]

Probably. But I can't get the idea out of my head.