You’ll struggle to find a more affordable pair of roof prism binoculars for viewing the night sky with the Celestron UpClose G2 10x50’s 10x magnification and 50mm objective lenses. They’re the perfect ...

The Nocs Field Tube 8x32 isn’t the ultimate astro-monocular, but it’s primed for casual lunar views and planet-spotting in twilight. Its 32mm objective lens makes it less than ideal at night, but it's ...

Binoculars have three main parts: the objective lens, prisms and the ocular lens. Binocular lenses are thicker in the middle and taper out to a thinner edge, which bends light toward the middle. These ...

Over on YouTube [Applied Science] shows us how to make an f/0.38 camera lens using an oil immersion microscope objective. The f-number of a lens indicates how well it will perform in low-light. To ...

These excellent binoculars offer an above average 15x magnification, and a larger than normal 56mm objective lens for increased light gathering. This results in a larger than average pair of ...

Why you can trust Live Science Our expert reviewers spend hours testing and comparing products and services so you can choose the best ones for you. Find out more about how we test. The Celestron ...

Jena, Germany -- A new lens of the JENar™ Silverline™ product family enables efficient laser material processing of solar cells and thus indirectly contributes to the further development of renewable ...

Feature resolution of 1.3 microns at a ~10mm FOV! The Navitar SingleShot is a modular fixed focal length imaging system that combines the field of view of a macro lens with the resolution of a ...