If you look at the picture from this thread by djozz
There is a big threaded ring (bottom right) that sits in front of the lens. I used my calipers (part#2) to losen it.
If you look at the picture from this thread by djozz
There is a big threaded ring (bottom right) that sits in front of the lens. I used my calipers (part#2) to losen it.