ONC-T is a telephoto camera with a 6.35° × 6.35° field of view and several optical filters carried in a carousel. ONC-W1 and ONC-W2 are wide angle (65.24° × 65.24°) panchromatic (485–655 nm) cameras with nadir and oblique views, respectively.
The ONC-T is a specialized telephoto camera with a narrow field of view (6.35° × 6.35°) and multiple optical filters in a rotating compartment. The ONC-W1 and ONC-W2 are designed for wide-angle imaging, capturing panchromatic images from both nadir and oblique angles.