1/2.3’’ series fisheye lenses are characterised by their ability to capture an view angle as wide as 235 degrees. It supports max 1/2.3’’ format sensor with up to 12 mega pixel resolution which allows users to get super sharp images.
All glass design and multi-layer coating guarantee super sharp images and minimize flaring or ghosting.
When choosing a fisheye lens, focal length and image height are the vital aspects to take into consideration. The focal length of a lens determines the viewing angle of sences, while the image height determines what fisheye effect you will get. For example, CH308 is a fisheye lens with 1.21mm effective focal length and provides a 4.46mm image circle. When used with a 1/2.3 inch sensor, it is capable of shooting impressive 220 degrees circular images like this→. By comparison, CH313A with1.89mm focal length create circular image with a 180 degrees angle view.