Some cameras such as the Blackmagic Cinema Camera and 4K camera do not express their shutter speeds as you may currently be used to, such as in fractions of a second, like 1/30th, 1/50th, 1/100th of a second, etc. They are instead expressed more like the traditional motion picture standard of shutter angles like 180 degrees, and the normal 172.8 degree shutter.
1. Location or studio. – Ideally record your green screen shoot in a dedicated studio. A studio will normally have black walls and ceiling to suppress any spill light from lamps. Ideally don’t have a room with white walls or ceiling, as they can reflect back onto the subject, causing potential keying problems later.
Put simply, green screen is achieved by filming someone against a perfectly lit green screen, then subtracting the green colour and effectively making it transparent, and then merging another video behind to fill the place.
This part is more related to the aesthetic quality of a lens, and is the shape of the blurred image produced in the 'out of focus' parts of an image.
With all the new technology we have around us today it's often the fundamentals and basics of understanding that can often be left out and forgotten.
Choosing the camera for your needs all depends on your available budget, of course. It also depends on what action and sound you want to capture with the camera.
The camera is a machine like any other, that only does what the operator tells it to do. It will normally respond by slavishly following your commands even if what you are telling it is absolute rubbish and stupid!
Video composition is a very much talked about subject, so I thought I’d spend a little time here discussing the subject. It is good to know the rules and also how to break the rules to make an impact.
This is probably a good point to discuss the inherent colours in lighting in more detail.