1, depending on what machine you use, you'd better bring a tripod if you say 700D. It's best to take a light when taking a wedding, just set it to 1920 times 1080. 2, whether you can take it for an hour depends mainly on whether your card and battery are enough. Generally speaking, a battery can last for 40 to 50 minutes. Because the video you shot must be edited, you can go to the editing software to carve it into a CD, because what you want to output after editing has to be transcoded before it can be carved, and now most of the memory of a CD is enough! 4. SLR photography is the same as photography, but it will definitely have an impact on life expectancy than photography. The shutter of a SLR camera is limited. It is recommended to buy video cameras, such as 1500C, 2500C, which are not bad, inexpensive, and durable in battery. They are all high-definition. If you want to develop rapidly, you have to study this knowledge well, because composition, lighting and so on are very important, having a good machine is the foundation, and people's basic skills are the foundation.