There are many security cameras such as box camera, dome camera, ptz camera, bullet camera, IP camera, day/night camera and thermal (FLIR) camera. These cameras offer many great features. However, out of these cameras, PTZ camera is known to be the best.
You can check its characteristics and features at http://www.angekis.com/index.asp. Where you will find its different sizes and models. You can select the PTZ cameras which best suits your requirement.
Every camera differs in terms of quality and features. The standard security cameras have the ability to get the front view, they are not portable and movable. However, PTZ cameras are automatically adjustable with the help of remote control and they are capable to detect the targeted object without any specific command.
When you are doing video conferencing with the above-mentioned cameras, you have to virtually sit at 90 degrees opposite to the person at the other side to be able to see you on their video screens during a video conference.
PTZ camera with audio gives the tendency to record whispered voice, at any corner of the world, you will hear a clear voice without any interruption.
However, if you use PTZ cameras for the purpose of video conferencing then you need not to physically set your visual angle. The is to automatically detect the face expressions and let you completely visible to the opposite side of a person.
PTZ video conference cameras are essentially wide-angle cameras designed to produce high-resolution images. No doubt these cameras come with their personal lighting which is useful in making video calls in dark.
They are capable enough to even take the complete picture from various angles if you are sitting in the corner of the room or are moving around and speaking. Study these additional hints to know about the future advancements in video conferencing cameras.