A refracting telescope uses an objective lens to gather light.
A refracting telescope uses an objective lens primarily to gather light. The objective lens is the main lens in a refracting telescope, and its primary function is to collect and focus incoming light from distant objects. By gathering as much light as possible, the objective lens increases the brightness and clarity of the images seen through the telescope. This allows astronomers and stargazers to observe faint or distant celestial objects that would otherwise be difficult to see with the naked eye.
