Canon EOS 7D

The Canon EOS 7D is a professionalcropped sensor digital single-lens reflex camera made by Canon. It was announced on 1 September 2009 with a suggested retail price of US$1,699. Among its features are an 18.0 effective megapixel CMOS sensor, HD video recording, its 8.0 frames per second continuous shooting, new viewfinder which offers 1.0X magnification and 100% coverage, 19-point auto-focus system, movie mode, and built-in Speedlite transmitter.

The 7D remained in Canon's model lineup without replacement for slightly more than five years—the longest product cycle for any EOS camera. Its successor was the Canon EOS 7D Mark II, announced on 15 September 2014.

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Canon EOS 7D Mark II

The Canon EOS 7D Mark II is a professionaldigital single-lens reflex camera made by Canon. It was announced on 15 September 2014 with a suggested retail price of US$1,799. Among its features are a 20.2 effective megapixel APS-C CMOS sensor, HD video recording, its 10.0 frames per second continuous shooting, viewfinder which offers 1.0× magnification with a 50 mm lens and 100% coverage, 65-point auto-focus system, a built-in Speedlite transmitter, and a new metering sensor. It was preceded by the Canon EOS 7D.

The 7D Mark II was named the "Best Digital SLR Expert" in 2015 by the Technical Image Press Association.

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Online shopping

Online shopping (sometimes known as e-tail from "electronic retail" or e-shopping) is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser. Alternative names are: e-web-store, e-shop, e-store, Internet shop, web-shop, web-store, online store, online storefront and virtual store. Mobile commerce (or m-commerce) describes purchasing from an online retailer's mobile optimized online site or app.

An online shop evokes the physical analogy of buying products or services at a bricks-and-mortar retailer or shopping center; the process is called business-to-consumer (B2C) online shopping. In the case where a business buys from another business, the process is called business-to-business (B2B) online shopping. The largest of these online retailing corporations are Alibaba, Amazon.com, and eBay.

History

English entrepreneur Michael Aldrich invented online shopping in 1979. His system connected a modified domestic TV to a real-time transaction processing computer via a domestic telephone line. He believed that videotex, the modified domestic TV technology with a simple menu-driven human–computer interface, was a 'new, universally applicable, participative communication medium — the first since the invention of the telephone.' This enabled 'closed' corporate information systems to be opened to 'outside' correspondents not just for transaction processing but also for e-messaging and information retrieval and dissemination, later known as e-business. His definition of the new mass communications medium as 'participative' [interactive, many-to-many] was fundamentally different from the traditional definitions of mass communication and mass media and a precursor to the social networking on the Internet 25 years later.

Eos (disambiguation)

Eos is the goddess of the dawn in Greek mythology. It may also refer to Aeos, one of the four horses that drew the chariot of the young God Helios in Greek mythology.

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