Category: Product Tutorial

A diopter is a measure of a lens’s optical power, which is determined by its focal length. Diopter is widely used for eyeglasses, where it

Exit Pupil The exit pupil is the width of the beam of light leaving the eyepiece, usually measured in millimeters (mm). The larger the exit

Camera Controls The standard camera apps that come preinstalled with your smartphone offer very rudimentary controls and are designed to automatically adjust focus and exposure.

There are literally thousands of different formulations of glass in the world. Each formulation has its own very specific optical properties and consequently its own

Direct light will destroy the image presented in the telescope. In order to enhance the visual image, the lens and prism need to be coated

7. Prism type: roof prism, Porro prism 8. Prism material There are two types of prisms commonly used in telescopes: bak-4 and bk-7 prisms. BAK-4

1. Objective lens diameter  The diameter of the telescope is the diameter of the lens of the telescope. The telescope model generally clearly indicates the

A telescope is an optical instrument that uses lenses or mirrors and other optical devices to observe distant objects. The light passing through the lens