Resolution
Higher resolutions are important when the field of view of the camera is large, or when a very small spatial resolution is required because there are a lot of fine details in the high-speed event that need to be studied.It is important to understand that the higher the resolution of the camera, the lower the maximum frame rate will be. With a 4-megapixel camera you have 4x more pixels to process than with a 1-megapixel camera. Therefore, you will not be able to achieve the same frame rates with a higher resolution camera as with a lower resolution camera.