|Posted: Wed Aug 30, 2017 8:58 am Post subject:
|TeemÅ, you are close, but it's actually the other way around.
By default, the rod is keeping the aperture closed, or at F16.
It's kept like that with a spring.
When you turn the aperture ring, the aperture opens until the rod blocks it.
Now, usually, on more complex lenses, there are multiple components between the rod and the aperture itself, so you can block some of the components in the middle.
But on this lens, the rod directly controls the aperture leafs. You remove the rod, and you lose the aperture control.
I tried to remove the spring that keeps the rod+aperture in the closed position, and somehow keep it open, but had no luck.
That's why i am asking here, if the original poster managed to accomplish a full aperture control.
Not many people on the net that have accomplished this.
They usually just give up and block the aperture fully open.