Zenzanon 150mm f/3.5 versions

Hello.

I've seen there is at least two versions of the 150mm f/3.5 lens for Bronica EC/ ECTL /S2A.

- Larger and no MC
- Shorter and MC

Do you know which are their differences?

Thank you.

Regards.

Hello.

Looking for more info I've found a couple of wonderful links.
This one for the Bronicas:
http://web.archive.org/web/20021022200627/http://medfmt.8k.com/bronlens.html

And this other broader:
http://web.archive.org/web/20021001122829/medfmt.8k.com/third/index.html

Thank you