Which type of sight consists of a main tube with lenses to magnify distant objects?

A telescopic sight is designed specifically to magnify distant objects, making it easier for hunters to see and accurately aim at their targets. This type of sight has a main tube that contains lenses, which work together to enlarge the image of the object being viewed. The magnifying capability is particularly beneficial for long-range shooting, as it allows for more precise targeting.

In contrast, open sights, aperture sights, and iron sights do not have the capability to magnify images. Open sights refer to a sighting system without magnification, typically relying on a front and rear sight that align to help aim. Aperture sights, while also non-magnifying, include a small hole to help with alignment and focus. Iron sights are simple, fixed sights that use basic horizontal and vertical alignment for aiming. These types of sights are generally effective for shorter ranges but do not offer the substantial magnification that a telescopic sight provides.