The taller the column, the better the lens performance. CA (Chromatic Aberration) is measured with any in-camera corrections switched off, as far as we can know anyway. Even though not billed as ...

Meike is excited to announce the launch of its latest innovation, the 35mm F2.0 Full Frame Autofocus Portrait Lens, now available for Sony E mount, Nikon Z mount, and L mount cameras. This ...

Find out more about how we test. Fixed 35mm lenses, especially those with a fast aperture, are incredibly popular with visual storytellers. They're able to shoot clean images in high contrast and ...

or lenses that are flat on one side. Biconvex lenses can be constructed by gluing two planoconvex lenses back to back, which is done with an acrylic glue, in this case Acrifix adhesive.

An optical lens is a transparent optical component used to converge or diverge light emitted from a peripheral object. The transmitted light rays then form a real or virtual image of the object.

The best lenses for astrophotography enable you to capture the stars at the highest quality possible. Our roundup includes models for all leading camera brands. You'll want to own one of the best ...

which Samyang says have a "genuine analog sensibility", aren't quite as sharp as a dedicated prime lenses, such as Samyang's own 35mm f/2.8 (pictured below alongside the Remaster Slim), which was ...

Black, Peter and Black, Tina Arbon 2020. Fundamentals of ophthalmic dispensing 10: Single vision lens design – part 1. Optician, Vol. 2020, Issue. 7, p. 8293-1.

Spherical lenses are optical lenses with curved surfaces which converge or diverge light rays, thus forming a real or virtual image of an object. They are also known as singlets. Before selecting a ...

The best iPhone lenses are a sure fire way to take your iPhone photography up a level. Sure, the iPhone 15 Pro has a 48MP sensor, which sounds great on paper, right? Well, ask any professional ...

Buying contact lenses online comes with a few key benefits that you don’t get from in-person shopping: It’s more convenient and faster, and the contacts are typically cheaper than buying at ...