Aspherical glass lenses are lenses that have a non-spherical surface. This means that the surface of the lens is not a perfect sphere, but has a different shape. This can be used to correct for aberrations, which are imperfections in the image that is produced by a lens. Aspherical lenses are often used in high-end cameras and other optical devices.
There are several advantages to using aspherical lenses. First, they can produce sharper images than spherical lenses. This is because the non-spherical surface of the lens corrects for aberrations, which can cause the image to be blurry.
Second, aspherical lenses can be made smaller and lighter than spherical lenses. This is because the non-spherical surface of the lens allows for a thinner lens. Third, aspherical lenses can be used to correct for other optical defects, such as chromatic aberration.
However, there are also some disadvantages to using aspherical lenses. First, they are more expensive to manufacture than spherical lenses. This is because the non-spherical surface of the lens is more difficult to create.
Second, aspherical lenses can be more fragile than spherical lenses. This is because the non-spherical surface of the lens is more likely to be damaged. Overall, aspherical lenses offer several advantages over spherical lenses. However, they are also more expensive and fragile.
The Global Aspherical Glass Lenses Market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
Canon today announced the release of a new range of lenses for the company’s EF Cinema Lens portfolio, the Flex Zoom Lens series, aimed to make cinema-style productions more efficient.
The new lens series will be launched with the CN-E20-50mm T2.4 L F/FP wide-angle zoom lens (due out in June 2022) and the CN-E45-135mm T2.4 L F/FP telephoto zoom lens (due out in September 2022).
The new large-aperture lenses, designed in the pursuit of cinematic beauty, have high-level optical design and performance while keeping the aesthetic and ease-of-use of Canon’s EF Cinema lens family.
Canon currently offers zoom lenses with focal length ranges of 20-50mm for wide-angle and 45-135mm for telephoto, providing zoom lenses that cover the same range.
It already has six prime (single focal length) lenses. These new lenses’ adaptability enables efficient visual production workflows for a wide range of applications, including cinema, TV shows, advertisements, and much more.
When used in conjunction with full-frame or large-format cameras, these lenses fully exploit the cameras’ trademark narrow depth-of-field to generate smooth and realistic background blur, resulting in striking pictures.
Furthermore, the lenses maintain a brilliant T2.4 aperture1 across their respective zoom ranges, allowing for picture capturing in natural light even in low-light situations. This adds to less burdensome lighting setups and more efficient and cost-effective video production procedures.
The CN-E20-50mm has an optical design with ideal positioning of lens components, including a large-aperture aspherical lens and an anomalous dispersion glass lens. When combined with 8K cameras, they can retain great optical performance from the center of the picture to the perimeter.
In addition to supporting EF-mount data transmission2, the new lenses are also compatible with Cooke Optics’ /in Technology3. With this feature, recording metadata such as focus, zoom, aperture, and lens model may be transferred via the lens mount and shown on the camera. This extra data contributes to more efficient processes not just during on-location recording, but also during post-production and editing.
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