William Optics’ newest machined aluminum refractor captures fine detail for imagers and its size makes it easily portable ...

The subject of space exploration has been one of the most enigmatic and interesting topics of all time. When taught about ...

They use glass lenses instead of mirrors, and you look through the telescope from the top. Refractor telescopes have long optical tubes as light travels in a straight line to the eyepiece. Compared to ...

The Explore One STAR70APP Refractor Telescope is a low-cost deep-sky and ... It also includes five internal lenses.

Experienced astrophotographers will not outgrow this astrocam. The Altair 26C is perfect for photographing beautiful nebulas ...

Combination of thin lenses in contact. Refraction of light through a prism. Microscope and Astronomical Telescope (reflecting and refracting ) and their magnifying powers. Wave optics: wavefront ...

The aperture (the diameter of a telescope's primary lens or mirror ... even a smaller telescope, like an 80-mm refractor, can reveal fine planetary features at magnifications above 200×.