Wikia

Telescopic vision is the ability to see people or objects yards or even miles away. Kryptonians can develop this ability.

Characters who have displayed telescopic visionEdit

Clark Kent - This ability first manifested in Slumber although, even before this episode, he would often look at the stars in space by combining his already enhanced eyesight with the aid of his telescope when he was younger. Clark can, according to himself, see at least 50 feet in all directions and angles. (Pilot)
Kara Kent - Kara used this ability to see earthly objects from outer-space. (Veritas)
Isis - Isis, while occupying a host, has the ability to see objects and people from afar. (Isis)

Telescopic vision can be combined with X-ray vision. (Eternal)
When Clark was younger, he wasn't able to see things at the intensity that he can now, so he used a telescope to aid him combine with his already heightened vision.

Super	Super strength • speed • dexterity • stamina • leaps • breath (Arctic breath) • hearing
Vision	X-ray • telescopic • micro • heat vision
Other	Clark time • invulnerability • solar battery • flight • healing factor • longevity • telekinesis • precognition