I have used Vegas Pro with good results but many NLE’s will suffice.
There used to be a product from Serious Magic called Ultra (since purchased by Adobe) that did a phenomenal job with chromakeys – I have occasionally seen it on eBay plus I think Adobe included it under one of their older CS bundles (maybe 3?? Maybe standalone??).
A camera stabilizer lets you capture smooth shots without sacrificing freedom of movement. Here’s a look at the best handheld stabilizers available today.
