your camera has and how that connects to your encoding software or hardware.
Most cameras do not connect directly to Ustream; most cameras you will need to connect to a switcher, capture card or encoder and the encoder is what sends the video stream to Ustream.
It has 1080p resolution with a large FOV, a sharp image, and a wide angle making everything about its picture look more camera than webcam.
SDI output cameras are the most professional, and typically the most expensive option.Despite a newer version being released to replace it, the Logitech C920 is still the best webcam overall for streaming or calling your friends and family. They have the most options of any manufacturer, essentially selling a webcam at each interval between and (£20 GBP to £48 GBP).Through all my testing, Logitech cameras were of a consistently higher quality than their competitors, but they were also more expensive. When you select cam, the cam starts playing, place your cursor over the top right corner of image.You will see an arrow, click on arrow, this will take you to full screen.