The camera our group will be using to record our film trailer is the Canon 550D or the Canon 600D. The reason why we are using this is because the camera has good video capabilities, which will be crucial when filming a professional looking trailer. I already own this particular camera along with the lens' so no money has to be spent on buying/renting a camera for our A2 media coursework.
Lens Research
We are using a 28-105mm lens because of its zoom in/out capabilities; not only can it film at a closer range, it can also be zoomed in slightly. Although, this may not be very useful when filming a horror trailer, it may still provide use during our preliminary task.
The other lens that we are using to film is the Canon EF 50mm f/1.8 II Lens. We are using this lens because it films in a higher quality than the 28-105mm. Because of its low focal ratio it allows more light to be let into the lens; so when filming in low level light you will get a higher quality video image in comparison to a lens with a higher focal ratio. This ability is crucial because for the majority of our trailer we will be filming in low level light - a typical form and convention of a horror trailer.
As a group we also have access to two Canon 18-55mm lens' at f/4-5.6. This lens can be used effectively because of its lower focal length; it allows us to shoot shots closer than they actually are. The lens is not highest quality we have access too but is alright for use in well illuminated areas because it has a fairly high focal point - we will use the fixed 50mm lens because it has a lower focal point and allows more light to enter.
The last lens we have access to as a group is the 75-300mm EF lens at f/4-5.6. This lens will be used when we need to get shots that are inaccessible by foot or at a greater distance away. Although, this lens will not be able to shoot effective up close shots, we will have to switch between lens' for shots like these. Because of its higher focal point it will not work as effectively in low level light - we will have to make sure that the shot is correctly illuminated throughout.
We as a group have access to two GoPro HD Hero's. Because this is an action camera and not a DSLR we are unable to change the lens. The lens that comes standard with the camera is a f/2.8, with a 170 degree angle of view. This extreme wide angle allows us to film shots up extremely close and still obtain high detail. The size and quality of the camera and lens will allow us to get shots that perhaps could not be achieved with a normal camera; i.e a shot from the wheel arch of a car or from the point of view of the subject.
CHANGING THE ISO
Above is a photo we took three times with the Canon 550D with a Canon EF 50mm f1.8 II Lens. Changing the ISO changes the camera sensitivity to light; this will be a good feature when filming in low level light. Although, we will still have to artificially light the scene as appropriate to give the trailer a professional feel.
To the left is the image we took with a low ISO. We might need to use a low ISO when producing our film trailer because we can manipulate the lighting in the room. For example, if the room we want to film in is too light for our 'scary' themed trailer, then we can darken the room by adjusting the ISO on the camera.
This is the unadjusted ISO of the same shot. As you can see the detail within the picture is a lot more enhanced because the shot appears more lit- however all of the shots were taken with the same amount of light, the ISO was just changed.
To the left is the exact same shot as before, however this time with a high ISO set. We may use a high ISO when producing our film trailer if when filming we notice there is low level light. While we can probably rectify this problem by artificially lighting the 'set,' a high ISO can be used as a quick fix to this problem.
LENS CHANGING
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