Bronica focusing helicoid (75mm helicoid for zenzanon 100mm?)

[sealionfilm1]

Hello, I just found a cheap Zenzanon 100mm lens but do not have a focusing helicoid. However, I do have a Nikkor P 75mm f2.8 with its focusing helicoid, with "75mm" marked on it. Can I use this helicoid for my Zenzanon 100mm? Will it make the lens interfere with the mirror or anything?

 

[OAPOli]

Yes you can use this helicoid with the 100mm lens. This lens interferes with the mirror when the helicoid is fully retracted (infinity position), but only on the EC-series bodies.