As a researcher it is my job to investigate different points of our subject ( What ever it may be) This is to first of all develop a expert knowledge of the subject, so we aren't led a stray by interviewees or other experts in the subject. The second reason is so that we know what we want to show and represent. If we are trying to promote something or get our view across we cant show something that disproves us. The third reason is to arm ourself for what is to come for example if it was about gangs in london we would first have to research into the universities ethics and then after that look at what the gang stand for and how they operate so we can analyse any risks and avoid any personal dangers.
As a cameramen it is my responsibility to get all the shots that we need, so often you will need a ES (establishing shot) of where it is set for example a documentary set in a remote jungle will have a ES of the tree tops or of the river running through it it all depends on what you are covering in the documentary. then you would try to get a multitude of shots of your subject. For example a close up of a monkey eating a banna or a mid shot of a monkey looking out for predators (the shots you might need may vary depending of what the subject is , obviously it depends on what you are filming like wild life or other deceive moments scenario can be hard to get the shots you want
