Looking up your camera’s specs you read "2048x1088". What exactly does that tell you? It
describes the number of pixels per line, in this case 2048 pixels for the horizontal lines and 1088 pixels in the vertical lines. Multiplied together, the numbers indicate a resolution of 2,228,224 pixels, or 2.2 megapixels (million pixels, or 'MP' for short).
To determine which resolution you require for your application, doing some simple maths will help instantly:
Resolution= (Object Size)/(Size of the detail to be inspected)