With DVK-400, you isolate the presenter from the green background and replace that background with something you choose yourself. We deliver a high quantity of backgrounds that will suit your lecture seamlessly.
Alternatively, you can upload your background and use that instead.
With keying occlusion, you can select a part of the screen that isn't keyed. This way, you prevent the chromakeyer from keying out your presentation. Using green in your presentations is no problem this way!