Turning to those who have experience mounting oddball lenses to film or digital cameras. I know nothing about this, and don't want to make a mistake I can't correct.
I have the lens, the helicoid and the camera-to-helicoid adapter.
While doing a test mount, I found that lens worked at infinity when it was about halfway into the helicoid.
There are threads inside the helicoid, but the lens barrel is about 1mm, or 1.5mm, too small. Also there are no threads on the lens barrel.
I'd like to be able to attach the lens securely to the helicoid, and was wondering what people use in these cases.
I could:
1. go to a machinist and make an expensive adapter, then add a thread the lens barrel
2. use thick tape or bicycle inner tube and jam the lens into the helicoid - tried this and it works, but it won't last for too long before the lens starts to tilt or droop
I was wondering if there's some kind of putty I can apply to the outside of the barrel, and mount that to the helicoid. The putty would harden and keep the lens securely in place.
Plumber's putty? Some other magical compound? Other methods I don't know about?
Any suggestions greatly appreciated.
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