How to Use the Aperture Priority Mode on a Canon XH A1

"So the next mode that I am going to talk about is aperture priority and on your little power dial that's represented by capital "A", lower case "v" and in this mode the camera is controlling everything except for the aperture which you will control manually. And that's basically the amount of light you're letting in to the picture so the aperture control is actually the first ring on the series of rings here on your lens. It's the very first one and the picture gets darker as I move it up like that and lighter as I move it down and basically as I've moving it down, the aperture is opening up and letting more light in so that my picture gets lighter. But, let me just turn this around, give you a look at what that looks like. So you see now we're at 1.6, which is open all the way, but as I turn it, we get darker and darker and you see the picture lightening up because since I am in aperture priority and everything else is automatic the camera is actually changing the shutter mode to give me a correct exposure or maybe even adjusting the gain. But I can close it all the way down and you can see obviously we are way too dark. But that is a little bit about aperture priority mode, and this mode will give you the best control over your depth of field which basically is like, where is your focus. A larger depth of field means everything in this line, these two lines is in focus and a narrow depth of field means it gets really small so something right here would be out of focus if this was in focus, but that's a little bit about aperture priority and it just gives you better control of your depth of field, so give that a try but if you are getting this advanced and using, controlling depth of field you should probably be in manual mode anyway. But that's a little bit about aperture priority."