Thursday 21 August 2014

Green Screen - Providing out of the Flexibility to Photographers

Green screen photography also known as Chroma Key photography is a process that allows users to replace solid color background commonly in Green & Blue with a background of their choice. This technique has been around since years and has been popular in film industry for years. Now this technique is evolving and is preferred by photographers as well.


With green screen, you can capture remarkable pictures that are not feasible with conventional photocomposition techniques. It also means that you do not need to spend a huge amount on finding exclusive backgrounds for portrait photography; it allows you to give special effects to the pictures while increasing your photography opportunities enormously. The main aim of using green or blue screen photography is, when you use a solid color background it allows you to easily separate your subject from background.
In case you are well versed with Photoshop you might have spent many hours tracing your subject meticulously to replace it and place it to all together new background. However, green screen photography saves you from this hassle and simplifies the complete process, allowing you to separate your subject instantly by employing specially designed Green screen photography software.

In order to get started with green screen photography, you do not need any special equipment as such, your digital cam, computer, a green screen background and green screen software. 
 
Lighting -  The other key aspect to successful green screen photography is lighting. In order to instantly, remove green color from your photographs during postproduction, you need uniform lighting across the entire background while shooting. When using green screen, aim is to create even lighting for this you need atleast two lights. You can set up these lights as sidelights pointing towards the green screen from 45 degrees angle approx. Depending upon the material your green screen is made of users can determine the exact distance to place lights.

Subject - While shooting, it is good to keep your subject at least 6 feet from the background. If you do not keep minimum this much distance then it becomes challenging during post production. As closer your subject is to the background, more is the probability of green spill on your subject’s face and other body parts.
By exploring green screen photography, you are adding a new facet to your photography skills that can immensely expand your photography horizon.

2 comments:

Hello, advise how to create such a green screen video correctly?

must you use a specified muslin backdrop or any cotton sheet can work?

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