Welcome to the Forum, @jpiszcz! ![]()
Please note that a vote is not automatically added to a new Wishlist topic, so you probably want to hit the Vote button above the initial post.
You may also be interested in this Tips & Tricks topic:
Particularly for Cams mounted indoors and not subject to wind or a lot of movement (which I imagine is what you’re describing with the kinds of tension rods often used to hang curtains), supplying your own magnet might be the easiest option.
I realize that you described a third-party adapter in your initial post and that you’re not seeking that, but I’m going to drop a link to Mount Adapter for Cam OG just for those who might be interested in that Wishlist topic, as well.