The diffrence between thick and thin lens depends on your precription for your eyes.
A thick convex lens has a larger thickness and can bend light rays more than a thin convex lens. This results in a shorter focal length and stronger focusing ability for a thick convex lens compared to a thin convex lens.
Even if the material is the same, the thick lens is stronger because strength increases when thickness increases. If you pull on the lens in its plane and it is twice as thick then it is twice as strong. If you push on the lens perpendicular to it and it is twice as thick then it is eight times stronger. This is strength of materials theory taken in college for engineering.
The thick lens equation is used in optics to calculate the focal length of a lens that is not thin, taking into account the thickness of the lens itself.
oncave
A converging lens, also known as a convex lens, is typically thick in the middle and causes light rays to converge to a focal point.
A thick convex lens has a larger thickness and can bend light rays more than a thin convex lens. This results in a shorter focal length and stronger focusing ability for a thick convex lens compared to a thin convex lens.
the name
The lens size is the only difference the XL have a bigger lens.
Even if the material is the same, the thick lens is stronger because strength increases when thickness increases. If you pull on the lens in its plane and it is twice as thick then it is twice as strong. If you push on the lens perpendicular to it and it is twice as thick then it is eight times stronger. This is strength of materials theory taken in college for engineering.
There is no difference between lense and lens. All is the same.
The main difference between a 1.4 and a 1.8 lens is the aperture size. A 1.4 lens has a larger aperture, allowing more light to enter the camera compared to a 1.8 lens. This means the 1.4 lens can produce brighter images and better low-light performance.
The thick lens equation is used in optics to calculate the focal length of a lens that is not thin, taking into account the thickness of the lens itself.
It's about a $300-400 USD price difference.
oncave
A converging lens, also known as a convex lens, is typically thick in the middle and causes light rays to converge to a focal point.
The pinhole camera has no lens. The human eye has a variable-focus lens.
The main difference between a 35mm and a 50mm lens in Nikon cameras is the focal length. A 35mm lens has a wider field of view, capturing more in the frame, while a 50mm lens has a narrower field of view, ideal for portraits and close-up shots.