Complex sentence: For reconnaissance missions, a pair of downward-facing cameras suited to low and high-altitude photography were also equipped on the Nimrod; in later years a newer electro-optical camera system was installed for greater imaging quality.
Split into simpler sentences: For reconnaissance missions, the aircraft was also equipped with a pair of downward-facing cameras suited to low and high-altitude photography. In later years a newer electro-optical camera system was installed for greater imaging quality.