The diaphragm is a dome-shaped muscle that separates the chest from the abdomen. This muscle, also called the thoracic diaphragm, is the main muscle used for breathing and is also involved in other ...

When you use DPReview links to buy products, the site may earn a commission. Image: Nikon Nikon has announced the Nikkor Z ...

Sharpness and contrast are outstanding, and the extremely well-rounded 11-blade diaphragm helps the lens to retain delicious bokeh when the aperture is stopped down a bit. Update: Sony has gone some ...

Best picks - Top quality glass to use with your Nikon Z mirrorless camera, offering improved autofocus and image quality ...

SLR Magic’s fully manual primes are all about creating an atmospheric cinematic look and feel… which, incidentally, works for ...

A diaphragm is a safe barrier method of birth control. It works by stopping sperm from entering your uterus. Learn more about how to determine if this contraceptive is right for you. A diaphragm ...

The new RF 16-28mm F2.8 IS STM comes with image stabilization, weather sealing and STM autofocus.

The lens also benefits from a multi-layer coating to supress flare and ghosting. 9 blades make up the aperture diaphragm, and the minimum focus distance is listed as 0.3m. The Viltrox AF 23mm F1.7 Air ...

The lens is composed of 11 elements in nine groups. It includes two extra-low dispersion elements and a high index element. Additionally, it features a nine-blade aperture diaphragm. There is no ...

B&H is pleased to share Canon's RF 16-28mm f/2.8 latest zoom lens in its RF lenses line, the RF 16-28mm f/2.8 IS STM, a ...

Camera lens names might look like gibberish, but they have meaning. We decode the naming conventions of 11 lens manufacturers, including Canon, Fujifilm, Nikon, and other major brands.