Aspherical Lenses and Cylindrical Lenses
Ⅰ. Understand aspheric lensThe aspheric lens has a better radius of curvature and can maintain good aberration correction to obtain the required performance. The application of aspheric lenses brings...
How to Use Cylindrical Lens?
Ⅰ. Introduction of the cylindrical lensIn most cases, the cylindrical lens is made of cylindrical glass, where the cylindrical surface of the cylindrical lens is a precision-treated (curved) optical ...
Comparing Cylindrical Lenses with Ordinary Spherical Lenses
Ⅰ. What is a cylindrical lens?Cylindrical lens is generally used to focus incident light on the line or change the image's aspect ratio. It can form a linear image, and the direction of the beam ...
The Principle of Achromatic Lens
Ⅰ. Introduction of achromatic lensAchromatic lens refers to an improved camera lens, which can reduce or eliminate the color difference. So that, different colors such as blue, purple, and yellow can...
Introduction of Aspherical Achromatic Lens
Ⅰ. Introduction of achromatic lensOrdinary achromatic lens refers to a lens group that corrects the color difference of light of three wavelengths such as blue, green, and red. Because the focus of t...
What Are the Characteristics of Fisheye Camera Lens?
Ⅰ. What is a fisheye camera lens?A fisheye camera lens is a special type of ultra-wide-angle lens. It is small and super wide, showing a distorted spherical world view, most obvious in the curved out...
The Difference Between Aspherical Lens and Spherical Lens
A sphere uses one curvature on the whole surface, just like cutting from a sphere. A non-sphere has different curvatures such as cutting from an ellipse. The main purpose of non-spherical is to solve ...
Do You Know Anything About Achromatic Lenses?
Ⅰ. About Apochromatic LensesAn apochromatic lens is made up of two optical components that are cemented together: a positive low refractive index and a negative high refractive index. In comparison t...
What Are the Effects of Fisheye Lens?
Ⅰ. What are fisheye lenses?A fisheye lens is a type of super wide-angle lens that aims to view as far as the human eye can perceive, if not farther. However, there is a significant difference, becaus...
Why Do We Choose to Shoot with an Anamorphic Lens？
Well, stop trying in Photoshop or Lightroom and start looking at the lenses you use. With anamorphic lens, you can get the cinematic look you want.Ⅰ. What is an anamorphic lens?Cinematographers use a...
What Are the Effects of Anamorphic Lens?
Ⅰ. The effects of the anamorphic lensThe bokeh effect of the anamorphic lens has another distinctive feature. If it is a telephoto anamorphic lens, you can also get the shallow depth of field that a ...
Notes on Using Anamorphic Lens
The main reason for using digitally anamorphic widescreen is its other effects. Lens flares and out-of-focus backgrounds ("bokeh") will appear long rather than round (unless the lens has a s...
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