SFR (originally Société Française de Radiotéléphonie, no longer expanded) is a Frenchmobile phone company. It has 17 million clients, including (as of January 2007) over 2 million using 3G (specifically UMTS) technology. Image File history File links No higher resolution available. ...
It is currently 56% owned by the French group Vivendi and 44% by mobile phone giant, Vodafone. Rumours often circulate concerning the possibility of Vodafone increasing its shareholding, but Vodafone's recent sale of minority shares in mature markets such as Belgium and Switzerland, and its recent interest in emerging markets such as Turkey and India, suggest that such an increase is not an immediate prospect. Vivendi SA (formerly known as Vivendi Universal) is a French media conglomerate with activities in music, television and film, publishing, telecommunications, the Internet as well as video games. ... Vodafone Group Plc is a mobile network operator headquartered in Newbury, Berkshire, England. ...
Imatest™ SFR measures image sharpness and several additional factors that contribute to image quality, including chromatic aberration, noise, and Shannon capacity.
The standard version of Imatest SFR analyzes images tilted between 1 and 10 degrees from horizontal or vertical, with 3 to 7 degrees optimal.
SFR Results: MTF (sharpness) plot describes this Figure in detail.
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