As per the title, has anyone done any chroma key work before? I've a shoot coming up where I'm going to have to superimpose a full length portrait onto a background. I'll be taking both elements specifically for the image and I was wondering if anyone had any hints, tips or experiences to share in terms of actually shooting? I'm going to have to buy the chroma key background. I've found some muslin ones on eBay for about £40 which I presume will be okay. Am I right? I've read to avoid paper as it's too reflective, but also I'm looking for a background that will fold for storage. Also, is it worth looking at some of the free Photoshop chroma key plug-ins or am I as well simply doing a 'colour range' selection to separate the subject from the background?