Was thinking to buy either a Tamron 24-70 ef with an adapter or a rf, does third party lenses work for video?
Yes, third-party lenses can work great for video. In fact, many professional videographers prefer third-party lenses over native lenses because they often offer better image quality and performance at a lower price. The Tamron 24-70 EF is a great lens for video, and it will work well with an adapter on your RF mount camera. The adapter will add a bit of bulk and weight, but it won't affect the image quality. I hope it helps!