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Ⅰ. Transmission and reflection characteristics of custom optical lensesThe optical coating is designed based on the interference effect. Therefore, the performance of optical coating depends on the r...

Ⅰ. Influence of the direction of the custom optical filters on the wavelengthThe edge of the optical filter is engraved with an arrow to indicate the recommended direction of the light transmission f...

On October 22, the new English version Ecoptik.net website is officially launched, immediately following the 9 language version launch of the website, replacing the previous

1. Optical filters are not only protective lensesSome optical filters are only installed on the lens when they are used, such as polarizers, grayscale filters, while some are installed in front of the...

1. Are optical filters necessary in the digital age?Many novice photographers may be strongly recommended by the shopping guide to buy lens filters (mostly UV lenses). Although many friends have alrea...

Compared with the film age, photographers in the digital age need a lot fewer filters, but there are still some optical filters that are still necessary. Part of it is because it takes time and effort...

Ⅰ. What are optical filters?The color filter is a colored transparent sheet that absorbs, reflects and transmits colored light. The optical filter is made of colored optical glass material, which has...

What is a spherical lens? What is an aspheric lens? What is the difference between the two? Why are aspheric lenses recommended? Let's talk about the difference between the two.The spherical lense...