Anti-aliasing Filter

The sharpness of a camera is dependent:: the component acting as the filter (lens)

The sampler of a digital camera :: is the sensor which depends on the resolution used by the camera and also the anti-aliasing filter

. Using the ISO 12233 Test Chart

As the colour moves from Black to white in the space of very few pixels :: there is an increase in frequency. They can increase in different patterns whether horizontal, vertical, diagonal.

the lens acting as a filter may :: remove some frequencies or distort some frequencies.