Thursday, 4 October 2012

Technical Camera Settings





Colours
-All cameras will be set to the same white point/balance of 6500K to match that of modern computer monitors as well as HD televisions
-All footage will be colour-balanced in post-processing

Resolution & Framerate
-All cameras will be filming at 1920x1080 resolution at thirty frames per second (FPS) - this is the maximum resoltion these cameras can film at, and 30fps is chosen over other defaults such as 24fps or 25fps as these lower framerates can be noticed by the human eye and can sometimes make fast-moving motion (such as a kayaker on a river) seem 'jumpy'
-When a slow-motion effect is desired I will set the cameras to their fastest framerate setting; 60fps. This will allow for us to record twice as many frames of motion than before, giving us the option to display action anywhere between realtime speed and half-speed
-Here is an example of framerate differences
http://boallen.com/fps-compare.html

Aperture
-Aperture will be carefully selected to ensure key subjects are included and their relationship to other objects are clear
-Large aperture (small f-stop/small depth of field (DOF)) will be used when subjects do not stand out from the background, ie. when a large focul length is used, when subjects are next to other objects or
subjects are colour-camoflauged against their backgrounds
-Smaller apertures (larger f-stops/larger DOFs) will be used to include multiple subjects which are somewhat seperated, ie. two kayakers next to each other or a group of people walking up the mountains
-Of course, the choice of aperture is dependant to some extent on the available light

Exposure Length
-I intend to have each frame being exposed for a very short of time (~1/250s to ~1/4000s) this way no individual frames will appear blurred when the camera is recording fast moving information, such as fast camera pans or a rock climbing falling
-Even at night scenes I intend to keep exposure times as fast as possible to maintain a fast-paced, action-filled atmosphere - fast exposure times can be kept at night with the exchange of high ISO
-As the 'slowest' recording setting we will use is 30fps it is impossible for our film to contain any footage with exposure times of slower than 1/30fps

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