What flash do I actually need for a Canon 5D Mark IV because I am so confused right now. So I just got this camera secondhand from my uncle who used to do pro work but I have literally no idea how to use it yet. I went to take some pictures at my apartment last night and realized it doesnt even have a little flash that pops up like my old point and shoot did? I feel so dumb asking this but do I have to buy a separate thing to go on top? I have a wedding coming up in about three weeks in Chicago and I really want to take some nice photos of my friends but I dont want them to be all blurry and dark like they are now. My budget is probably around $150 or $200 max since I spent a lot on the memory cards. I see all these brands like Godox and Neewer and then the Canon ones that are super expensive and I dont know if the cheap ones will break my camera or something. I just want something easy that I dont have to mess with too much while people are dancing and stuff... does anyone have a recommendation for a total beginner who just wants it to work?