For many cameras, depth of field (DOF) is the distance between the nearest and the farthest objects that are in acceptably sharp focus in an image. The depth of field can be calculated based on focal length, distance to subject, the acceptable circle of confusion size, and aperture. A particular depth of field may be chosen for technical or artistic purposes. Limitations of depth of field can sometimes be overcome with various techniques/equipment.
A camera is an optical instrument to capture still images or to record moving images, which are stored in a physical medium such as in a digital system or on photographic film. A camera consists of a lens which focuses light from the scene, and a camera body which holds the image capture mechanism.
In photography, bokeh is the aesthetic quality of the blur produced in the out-of-focus parts of an image produced by a lens. Bokeh has been defined as "the way the lens renders out-of-focus points of light". Differences in lens aberrations and aperture shape cause some lens designs to blur the image in a way that is pleasing to the eye, while others produce blurring that is unpleasant or distracting . Bokeh occurs for parts of the scene that lie outside the depth of field. Photographers sometimes deliberately use a shallow focus technique to create images with prominent out-of-focus regions.
Underwater photography is the process of taking photographs while under water. It is usually done while scuba diving, but can be done while diving on surface supply, snorkeling, swimming, from a submersible or remotely operated underwater vehicle, or from automated cameras lowered from the surface.
A camera phone is a mobile phone which is able to capture photographs and often record video using one or more built-in digital cameras. It can also send the resulting image over the telephone function. The first commercial camera phone was the Kyocera Visual Phone VP-210, released in Japan in May 1999.It was a cordless phone as distinct from a cellular mobile phone.
Macro photography, is extreme close-up photography, usually of very small subjects and living organisms like insects, in which the size of the subject in the photograph is greater than life size . By the original definition, a macro photograph is one in which the size of the subject on the negative or image sensor is life size or greater. However, in some uses it refers to a finished photograph of a subject at greater than life size.
A full-frame digital single-lens reflex camera (DSLR) is one with an image sensor format that is the same size as 35 mm format film. Historically, 35 mm was considered a small film format compared with medium format, large format and even larger.
JPG is a quarterly print magazine focused on mobile phone photography published by 100 Tribes, Inc. in New York City. The content of JPG Quarterly magazine is user-created and submitted via a mobile app. When photos are submitted through the app they are also rated by the community for consideration to be published in the next issue. Each issue features multiple subjects and themes. The premiere issues is expected to be published in March 2020.
Digital Photography Review, also known as DPReview, is a website about digital cameras and digital photography, established in November 1998. The website provides comprehensive reviews of digital cameras, lenses and accessories, buying guides, user reviews, and forums for individual cameras, as well as general photography forums. The website also has a database with information about individual digital cameras, lenses, printers and imaging applications. Originally based in London, Digital Photography Review and most of its team relocated to Seattle, Washington, in 2010. It is currently owned by Amazon.
Tony Sweet is an American photographer, known for his widely published nature photography. He is also a jazz musician, workshop instructor, and author.
Landscape photography shows spaces within the world, sometimes vast and unending, but other times microscopic. Landscape photographs typically capture the presence of nature but can also focus on man-made features or disturbances of landscapes. Landscape photography is done for a variety of reasons. Perhaps the most common is to recall a personal observation or experience while in the outdoors, especially when traveling. Others pursue it particularly as an outdoor lifestyle, to be involved with nature and the elements, some as an escape from the artificial world.
Chris Friel is a British photographer noted for his abstract landscape images.
Triggertrap was a company that created several different hardware and software products centred on triggering SLR cameras.
The Fujifilm X-Pro1 is a mirrorless interchangeable-lens digital camera announced in January 2012 and launched in March 2012. It is part of Fujifilm's X-Series of cameras. In October 2012 Fujifilm has released a very similar, yet smaller, camera named the X-E1. In January 2016 Fujifilm announced its successor the X-Pro2.
The Olympus OM-D E-M5, announced in February 2012, is a Micro Four Thirds compact mirrorless interchangeable lens camera. In style and name it references the Olympus OM series of film SLR cameras, but it is not an SLR camera. The successor is the Olympus OM-D E-M5 Mark II.
The Fujifilm X100 is a series of digital compact cameras with a fixed prime lens. The series includes the FinePix X100,X100S,X100T and X100F. They each have a large image sensor and a 23 mm lens. All four cameras have received generally positive reviews.
The Sigma 8–16mm lens is an enthusiast-level, ultra wide-angle rectilinear zoom lens made by Sigma Corporation specifically for use with APS-C small format digital SLRs. It is the first ultrawide rectilinear zoom lens with a minimum focal length of 8 mm, designed specifically for APS-C size image sensors. The lens was introduced at the February 2010 Photo Marketing Association International Convention and Trade Show. At its release it was the widest viewing angle focal length available commercially for APS-C cameras. It is part of Sigma's DC line of lenses, meaning it was designed to have an image circle tailored to work with APS-C format cameras. The lens has a constant length regardless of optical zoom and focus with inner lens tube elements responding to these parameters. The lens has hypersonic zoom autofocus.
