Adjective : a telescopic lens. ,a telescopic view of the moon. ,a telescopic eye.    From Dictionary.com. 

But, as any one will see who looks at these stars when the Dragon is best placed for ordinary (non-telescopic) observation, the attitude of the animal is far more natural when the star Iota of Hercules marks the tongue, for then the creature is situated like a winged serpent hovering above the horizon and looking downwards, whereas when the star Xi marks the tongue, the hovering Dragon is looking upwards and is in an unnaturally constrained position.    From Wordnik.com.  [Myths and Marvels of Astronomy] Reference