I created this camera in 3D Studio Max thanks to a tutorial, fixed some things in Zbrush and then rendered it in Keyshot. It was a great exercise for me and I learned a lot. You can check out the tutorial here.
This is a quick sculpt sketch from a week or so. I didn't really have a concept while doing it. Of course, I forgot to do a couple of things, but overall it turned out alright. Next time it will be better. Here's my process: https://www.youtube.com/watch?v=AQ3FyAO_7kw