Nikon D5100

The Nikon D5100 is a 16.2-megapixel DX-format DSLR F-mount camera announced by Nikon on April 5, 2011. It features the same 16.2-megapixel CMOS sensor as the D7000 with 14-bit resolution, while delivering Full HD 1080p video mode at either 24, 25 or 30fps. The D5100 is the first Nikon DSLR to offer 1080p video at a choice of frame rates; previous Nikon DSLRs that recorded 1080p only did so at 24 fps. It replaces the D5000 and is replaced by the D5200.

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Nikon

Nikon Corporation (株式会社ニコン, Kabushiki-gaisha Nikon) (UK /ˈnɪkɒn/ or US /ˈnaɪkɒn/;  listen [nikoɴ]), also known just as Nikon, is a Japanese multinational corporation headquartered in Tokyo, Japan, specializing in optics and imaging products.

Its products include cameras, camera lenses, binoculars, microscopes, ophthalmic lenses, measurement instruments, and the steppers used in the photolithography steps of semiconductor fabrication, of which it is the world's second largest manufacturer. The companies held by Nikon form the Nikon Group. Among its products are Nikkor imaging lenses (for F-mount cameras, large format photography, photographic enlargers, and other applications), the Nikon F-series of 35 mm film SLR cameras, the Nikon D-series of digital SLR cameras, the Coolpix series of compact digital cameras, and the Nikonos series of underwater film cameras. Nikon's main competitors in camera and lens manufacturing include Canon, Sony, Fujifilm, Lumix, Pentax, and Olympus.

Founded on July 25, 1917 as Nippon Kōgaku Kōgyō Kabushikigaisha (日本光学工業株式会社 "Japan Optical Industries Co., Ltd."), the company was renamed Nikon Corporation, after its cameras, in 1988. Nikon is one of the subsidiaries of Mitsubishi.

Canon EOS 600D

The Canon EOS 600D is an 18.0 megapixel digital single-lens reflex camera, released by Canon on 7 February 2011. It is known as the EOS Kiss X5 in Japan and the EOS Rebel T3i in the Americas. The 600D is the second Canon EOS camera with an articulating LCD screen and supersedes the 550D, although the earlier model was not discontinued until June 2012, when the successor of the 600D, the 650D, was announced.

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Review

A review is an evaluation of a publication, service, or company such as a movie (a movie review), video game (video game review), musical composition (music review of a composition or recording), book (book review); a piece of hardware like a car, home appliance, or computer; or an event or performance, such as a live music concert, play, musical theater show, dance show, or art exhibition. In addition to a critical evaluation, the review's author may assign the work a rating to indicate its relative merit. More loosely, an author may review current events, trends, or items in the news. A compilation of reviews may itself be called a review. The New York Review of Books, for instance, is a collection of essays on literature, culture, and current affairs. National Review, founded by William F. Buckley, Jr., is an influential conservative magazine, and Monthly Review is a long-running socialist periodical.

In academia

A peer review is the process by which scholars or scientists assess the work of their colleagues that has been submitted for publication in the scientific or scholarly literature.