Making a sex vid

The other day my long distance bf and I were having really good sex and I asked if he wanted to take a video (something to look at when we can’t be together because he’s about an hour away and we both work during the week) but he seemed very against it.

I don’t want to force him into this but I would like to try and bring it up again. It’s something that I’m really into and I would like to try it with him, has anyone had a kink that they really had to talk about with their S.O. and if you did, how’d you respectfully bring it up?