I'm trying to realise my own ring light for my Nikon D5100 and wanted to create a thread as attachment possibility in front of the lens. I only found .stl-files I couldn't edit or use because of different thread-types. It would be nice, if you can give me a hint where to get a accordingly file.
I got some different ideas. Maybe you can share your opinions on these. First the already stated one. But I'm not sure if the amount of light produced by the ring at the lens is creating flares or making the pictures "ugly".
The second Idea was to glue or push the light ring onto the lens itself. But I'm not sure if I would damage the lens itself.
My actual idea is to have a bridge from the electrical box to the ring.
Thanks for your Help.