Photo: Abby Ferguson Interchangeable lens cameras, or cameras that let you swap out lenses, can unlock a lot of opportunities ...

The F-number of a photographic lens is a measure of its light-gathering ability, and is expressed as its aperture diameter divided by its focal length. Lenses with low F-numbers are prized by ...

The lenses contain several different focal zones, which the brain responds ... such as perceiving halos and glare, which could affect activities like driving at night. These side effects may ...

You can also create this effect by minimizing the distance between the lens and the subject. Alternatively, use a focal length that compresses the perspective, such as 85mm or longer. With this ...

A progressive lens design is like a bi- or tri-focal lens in that it corrects more than one vision problem at a time. However, these lenses have no visible lines, improving the cosmetic appearance of ...

[volzo]’s hypercentric camera uses a 700-mm focal length Fresnel lens mounted on a motorized gantry, which precisely positions a camera relative to the lens to get the right effect. A Raspberry ...

Tamron Co., Ltd. (President & CEO: Shiro Ajisaka) has announced the release of a 3-mega-pixel 1/2.7” 2.7-13mm F/1.4 vari-focal lens (Model: M13VG2713IR) that supports high resolution throughout the ...