aspherical

Cosina is further adding to its RF line of lenses by bringing its Voigtlander Nokton 75mm f/1.5 Aspherical lens to Canon's mirrorless mount in April.

Cosina has announced that it will release a Nokton 50mm f/1 Aspherical and a Super Wide-Heliar 15mm f/4.5 Aspherical for Nikon Z-mount full-frame mirrorless cameras.

Panasonic has announced the large-aperture ultra-wide Lumix G Leica DG Summilux 9mm f/1.7 ASPH for Micro Four Thirds (MFT). The lens is manufactured under Leica's standards which the company says makes it suitable for both pros and high-end amateurs.

Leica has announced a limited-edition matte black version of its Summicron-M 28mm f/2 ASPH lens that comes with an integrated lens hood. The company says that not only does it look good, but the paint is also designed to resist scratches.

Cosina has announced the Voigtlander Heliar 40mm f/2.8 Aspherical for Leica Screw Mount Thread (L39) and VM-mounts. The lens is designed to be lightweight, small, and compact with a semi-wide angle and crisp sharpness.

Cosina has announced a new ultra-wide lens under its "Vintage Line" for Leica M-Mount: the 21mm f/3.5 Color Skopar Aspherical lens. It updates a 2019 design reminiscent of the 1950s to one more akin to the 1970s.

What is an aspherical lens and what does it do? Canon has shared a video that explains the problems engineers face in lens design and how the company solved them using aspherical lenses.

Panasonic has announced the Leica DG Vario-Summilux 25-50mm f/1.7 ASPH lens for Micro Four Thirds cameras that is able to boast a wide-open f/1.7 aperture through the entire zoom range and is designed to pair with the popular Vario-Summilux 10-25mm f/1.7 ASPH.

Leica has announced its version of the popular "desert island" lens in the Vario-Elmarit-SL 24-70mm f/2.8 ASPH., what it calls an "ideal lens with broad appeal," as it is capable across multiple disciplines from travel, studio, architecture, photojournalism, portraiture, and more.

Leica has announced its latest L-mount prime: a 28mm f/2. This lens follows the company's existing focal lengths of 35mm, 50mm, 75mm, and 90mm lenses already available for L-mount, and promises top-tier optical performance and fast, reliable autofocus.

In January, Leica announced the re-issue of the classic Noctilux-M 50mm f/1.2 ASPH. The silver edition was limited to 100 pieces and an official Leica reseller is claiming its value has already doubled.

Leica has announced the reissue of what it calls a "landmark" lens: the Noctilux-M 50mm f/1.2 ASPH. The lens will be released in two variants: standard black, which is available through all dealers, and silver, limited to 100 units and only available at Leica stores.

Cosina has announced the Voigtlander APO-Lanthar 50mm f/2 Aspherical lens for Leica M-Mount cameras based on the E-Mount version the company released last year. The apochromat design is touted as able to produce "ultimate performance" of resolution and contrast.

When camera lens makers announce new lenses, one of the specs they always tout is how many aspherical elements the lens designs have. If you're not sure what those elements are and what they do, here's a short and helpful 4-minute video by Michael the Maven that'll bring you up to speed.

Have you heard of the "onion ring" effect in bokeh? It's a rather obscure term that emerged as lenses began featuring aspherical lens elements to reduce aberrations and reduce size. Due to the way aspherical lenses are produced, strange "onion ring" lines can appear in out-of-focus points of light.

The term may also soon be a thing of the past: Panasonic has reportedly figured out how to cut the onion (effect), allowing aspherical lenses to produce smooth and pleasing bokeh.