Purchase Guide
Overview of the Nanyang Optics Industry
Author: Jun Ni Time: The evening of May 9, 2022 Nanyang City is located in the Central Plains of China, with a total area of
October 11, 2022 No Comments
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Author: Jun Ni Time: The evening of May 9, 2022 Nanyang City is located in the Central Plains of China, with a total area of
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
Interpupillary distance (IPD) is the distance between the pupils of your eyes measured from center to center when your eyes are focused on infinity. IPD
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
What optic is being used? As far as stabilization goes, a well-made tripod, will hold any standard field binocular or spotting scope firmly in place
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
Twilight Factor is a number used to compare the effectiveness of binoculars or spotting scopes used in low light. The larger the twilight factor, the more
BINOCULARS, MONOCULARS, AND SPOTTING SCOPES SOLAR WARNING Never look directly at the Sun with the naked eye or with this optic. Permanent and irreversible eye
Compactness and ruggedness are two major features to consider when looking for a pair of binoculars. Compactness relates to whether roof, porro, or other prisms
Lens coating Lens coating is our most intuitive experience of telescopes. Which color, red, yellow, blue, and green, etc. Generally, there will be many layers
First, adjust the positive and negative diopter scales of the left and right eyepieces of the telescope to 0 scale. Hold the left and right
Address: No.1, Group 1, Xiawa Village, Nanyang City, Henan, China
Tel/Fax: +86-150-90109285
Email: jun@opticschinasupplier.com
We will contact you within 1 working day, please pay attention to the email with the suffix “@opticschinasupplier.com”.
